A student has a marble with a mass of 50 grams. To determine the volume of the marble, the water displacement method is used. The student places the marble in 50 mL of water in a graduated cylinder, and the water level rises to 70 mL. What is the density of the marble? A 20 g/mL B 120 g/mL c 0,4 g/mL D 2.5 g/mL
Answers
Answer:
D 2.5 g/mL
Explanation:
The density of a substance/object can be calculated by using the formula:
Density = mass/volume
Where;
Density = g/mL
Mass = grams
Volume = mL
The water displacement method was used to calculate the volume of the marble. The student places the marble in 50 mL of water in a graduated cylinder, and the water level rises to 70 mL. This means that the volume of the marble is 70mL - 50mL = 20mL
The mass of the marble is 50g
Hence, the density of the marble is as follows:
Density = 50/20
Density = 2.5g/mL
Related Questions
A device which makes work easier is called a simple machine
Answers
Answer:
In explanation.
Explanation:
What is the definition of that device which makes work easier that is called a simple machine?
-A simple machine is any device that makes work easier by changing force. Machines that consist of two or more simple machines are called compound machines.
How? There are many ways simple machines make work easier:
-The wheel and axle is a machine in which the wheel is attached to a central axle.
1. Machine makes work easier by changing the amount of force you need to exert.
2. The distance over which the force is exerted.
3. The direction in which you exert your force by increasing the distance through which force is applied.
4. Changing the direction of applied force, by multiplying the force of speed of the energy applied.
-Hope this helps.
Which choice uses a nonrenewable energy resource to generate energy?
biomass power plant
fireplace that burns wood
nuclear power plant
wind farm
heeellllp meeeeeeeeeeeeee!!!!!
Answers
Answer:
Explanation:
its the fireplace ahhhhhhhhhhhhhhhhh
Complete a dichotomous key for the 10 leaves on the Common Leaves sheet.
Answers
Answer:
1) leaf margin smooth
2) leaf margin toothed
3) leaf margin smooth
4) leaf-type needle-like
Explanation:
Identifying Variables in a Hypothesis
Identify the variables in this hypothesis.
If the pressure of a gas is increased, then the volume will decrease because the particles of the gas will be forced
closer together
The independent variable is
The dependent variable is
Answers
Answer:
The independent variable is pressure
The dependent variable is volume.
Explanation:
Answer:
The independent variable is pressure.
The dependent variable is volume.
Explanation:
volume of matter decreases under pressure ... -under pressure, the particles in a gas are forced closer together ... factors affecting gas pressure ... -if pressure in a sealed container is lower than outside, gas will rush in ...
Animals kept in animal rooms and experimental areas that undergo periodic testing to identify the presence of any microorganisms in the animal colonies are referred to as _____.
Answers
Animals kept in animal rooms and experimental areas that undergo periodic testing to identify the presence of any microorganisms in the animal colonies are referred to as sentinel animals.
What do you mean by microorganisms?
Microorganisms, also known as microbes, are microscopic living organisms, such as bacteria, viruses, fungi, and protozoa. These organisms are too small to be seen with the bare eye and are found everywhere in the environment, including in air, soil, water, and inside and on the surfaces of living things.
Sentinel animals are used to monitor the health of the animal colonies in animal rooms and experimental areas. By testing these animals periodically, scientists can identify the presence of any microorganisms that may be present in the animal colonies. This helps ensure the animals remain healthy and free from any infectious diseases. In addition, sentinel animals can also provide an early warning system for any potential disease outbreaks in the animal colonies.
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Light adds atoms to molecules in the process of photosynthesis.
True
False
Answers
Answer:
The Ans is true
Explanation:
Good luck!
define the following terms: true breeding, hybridization, monohybrid cross, p generation, f1 generation, f2 generation
Answers
The following terms can be defined as:
True breeding: True breeding is a sort of breeding in which the parents generate kids with the same phenotype. This signifies that both parents are homozygous for all of the traits. Aberdeen Angus cattle are an example of real breeding.Hybridization: In genomics, hybridization is the process by which two complementary single-stranded DNA or RNA molecules join together to generate a double-stranded molecule. The bonding is determined by the correct base pairing between the two single-stranded molecules.Monohybrid cross: A monohybrid cross is a genetic mix of two people with homozygous genotypes, or genotypes with totally dominant or completely recessive alleles, resulting in opposing phenotypes for a certain genetic characteristic.P generation: The paternal generation is a basic P generation definition. The p generation is the first pair of parents in a genetic cross experiment. The F1 generation is the first generation created by the p generation.F1 generation: F1 refers to the first filial generation of seeds/plants or animal progeny produced by a cross-mating of markedly different parental types. In general, the characteristics of plants, insects, animals, and humans are the consequence of several gene interactions.F2 generation: It is the first filial generation resulting from the union of two separate parents. It is the second filial generation produced by crossing the F1 generation with oneself.To learn more on genetics click,
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Ansel Adams' constant energy and activity helped him achieve notoriety and prestige in the early 1930's.
Which word is the best synonym for the underlined word in the sentence above.
a. honor
C. awards
b.
wealth
d fame
Answers
Answer:
It's "D"
Explanation:
Fame
Answer:
it d
Explanation:
For those women who are not progressing at all or the baby is showing early signs of distress, the decision is
often made to induce labor. This uses a synthetic form of oxytocin, called Pitocin, which is given intravenously
(IV) to the woman to get the contractions going. It is often stopped after a few hours. Why might that be?
Answers
Answer:
It is common for contractions to occur every often meaning a sign of labor might be happening soon
Explanation:
Simply meaning your brain is telling your system the baby is ready
Largest layer of earth that makes up most of the earths mass. A:crust B:mantle. C:outer core. B:inner core
Answers
Answer:
Mantle is the answer
Explanation:
The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the mantle is the thickest layer, while the crust is the thinnest layer.
I am taking the same class rn!!! whos your teacher??
Answer:
b-MANTLE
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.
Which is a natural factor that causes long-term climate change?
Earth’s position
pollen grains
fossils
ice cores
Answers
Answer:
the is Earth's position
Answer:
A. Earths positions
Explanation:
ummmmmmm it is
Comparing the fetus's of a chicken and human is evidence for
a. geographic distribution
b. homologous structures
c. embryology
d. fossil record
Answers
a Florida community is planning to use self driving shuttles to transport residents. The shuttleswill be powered by electricity that is produced by solar collectors. Each shuttle will hold up tosix passengers and will travel in a closed loop. which statement describes the greatest benefitto the environment of using these shuttles?a.Less habitat will be destroyed because using a closed loop will eliminate the need fornew roads.b. animals will be less affected by noise because there will be fewer shuttles than personalcars.c. plants will be less healthy because energy from the sun will be transferred to solarcollectors.d.less air pollution will be released because no fossil fuels will be burned to power theshuttles.
Answers
The correct answer is d. less air pollution will be released because no fossil fuels will be burned to power the shuttles. Since the proposed infrastructure will not burn fossil fuels, nor emit any contaminant gas.
According to comparative morphology,
O all organisms have similar development
O
the more closely related two species, the more analogous structures they will share
O homologous structures are inherited from a common ancestor
O organisms which have vestigial features are related to one another
Answers
Answer:
The statement "the more closely related two species, the more analogous structures they will share" is incorrect. Analogous structures are structures that serve a similar purpose in different species, but are not derived from a common ancestor. Homologous structures are structures that are similar due to inheritance from a common ancestor. The statement "organisms which have vestigial features are related to one another" is correct, as vestigial features are remnants of ancestral structures that have lost their function in an organism's evolutionary history and may suggest a relationship to a common ancestor with functional counterparts.
Hope this helps!
Directions: The suggested time for answering this question is about 22 minutes. Where calculations are required, clearly show how you arrived at your answer. Where explanation or discussion is required, support your answers with relevant information and/or specific examples.
The term “urban sprawl” describes the expansion of cities into rural areas. This phenomenon has occurred around the world and has had economic, health, and environmental consequences.
Describe TWO causes of urban sprawl.
Discuss TWO human health effects associated with urban sprawl.
The graph below shows the relationship between population density and petroleum use in selected cities.
Describe the relationship between population density and petroleum use shown in the graph.
A graph is shown of petroleum use. The y-axis is relative annual per capita petroleum use with no numbers on the axis. The x-axis is density in persons per hectare, which goes from 0 to 300 in increments of 50. A curve is drawn starting at the top of the y-axis and is decreasing and concave up with increasing density. The curve appears to asymptote along the x-axis and is relatively flat by about 200 persons per hectare. There are points that lie close to the curve indicating where particular cities fall. The first four cities at the top of the curve, which are both below 50 persons per hectare, are Houston, Los Angeles, Washington, and New York. Below New York a horizontal line is drawn indicating that the cities about this line are in the United States. Below this line but above the next horizontal line are Melbourne, Sydney, and Toronto, all around 50 persons per hectare. The cities between these horizontal lines are indicated to be in Australia and Canada. Below the second line but above the third line are Paris, London, and Vienna, from about 75 to 150 persons per hectare. The cities between these lines are indicated to be in Europe. Below the third horizontal line but above the x-axis are Tokyo, Moscow, and Hong Kong from about 150 to 275 persons per hectare, and the cities in this area are from East Asia and Russia.
Smart growth focuses on ways to encourage sustainable urban development. Describe TWO steps a municipality could take to encourage smart growth in order to limit urban sprawl.
Highway systems and urban sprawl often threaten wildlife populations. Describe TWO methods to reduce harmful effects on wildlife populations from highways and urban sprawl.
Urban sprawl often results in the loss of productive agricultural land near cities. Describe one practical way to increase food production within urban areas.
Answers
Answer:
Causes of Urban Sprawl:
Population Growth: Rapid population growth is a significant cause of urban sprawl. As cities experience an increase in population, there is a greater demand for housing and infrastructure, leading to the expansion of urban areas into previously rural or undeveloped lands.
Transportation Infrastructure: The development of transportation infrastructure, such as highways and roads, can contribute to urban sprawl. Improved accessibility and connectivity provided by these infrastructures often lead to the outward expansion of cities as people choose to live farther away from city centers.
Human Health Effects Associated with Urban Sprawl:
Sedentary Lifestyle and Obesity: Urban sprawl often leads to increased reliance on private vehicles and longer commuting distances. This sedentary lifestyle, coupled with the lack of pedestrian-friendly infrastructure, can contribute to a decrease in physical activity and an increased risk of obesity among residents.
Air Pollution and Respiratory Issues: Urban sprawl is associated with increased vehicular emissions, leading to poor air quality. Exposure to high levels of air pollution can cause respiratory problems, such as asthma and other respiratory diseases, impacting the health of individuals residing in these areas.
Relationship between Population Density and Petroleum Use:
The graph illustrates that there is an inverse relationship between population density and petroleum use. As population density increases, per capita petroleum use tends to decrease. This relationship suggests that higher population density is associated with more efficient use of petroleum resources, potentially due to factors such as improved public transportation systems, shorter commuting distances, and increased availability of alternative modes of transportation. The graph indicates that cities with higher population density tend to have lower per capita petroleum use, while cities with lower population density exhibit higher per capita petroleum use.
Steps to Encourage Smart Growth and Limit Urban Sprawl:
Mixed-Use Development: Municipalities can encourage mixed-use development, which involves integrating residential, commercial, and recreational spaces within the same area. This approach reduces the need for long commutes and promotes walkability, thereby limiting urban sprawl.
Transit-Oriented Development: Promoting transit-oriented development focuses on creating compact, vibrant communities around public transportation hubs. By providing easy access to public transit options, municipalities can encourage residents to rely less on private vehicles, reducing congestion and the need for expansive road networks.
Methods to Reduce Harmful Effects on Wildlife Populations:
Wildlife Corridors: Establishing wildlife corridors or green belts can mitigate the negative impacts of highways and urban sprawl on wildlife populations. These corridors provide protected pathways for wildlife to move between fragmented habitats, reducing habitat fragmentation and enhancing biodiversity conservation.
Eco-Friendly Infrastructure Design: Implementing wildlife-friendly infrastructure design features such as wildlife crossings, underpasses, and fencing can help prevent wildlife-vehicle collisions. These measures allow animals to safely traverse across highways and urban areas, minimizing the detrimental effects on wildlife populations.
Increasing Food Production within Urban Areas:
One practical way to increase food production within urban areas is through the implementation of urban agriculture initiatives. This can involve utilizing rooftops, balconies, community gardens, and vacant lots to cultivate crops, raise livestock, or engage in aquaculture. Urban agriculture not only increases local food production but also promotes food security, community engagement, and environmental sustainability by reducing the carbon footprint associated with long-distance food transportation.
By adopting smart growth strategies, addressing the impacts of urban sprawl on wildlife and implementing urban agriculture initiatives, municipalities can actively promote sustainable and resilient urban development.
What is the probability that unicorn offspring will have a white horn? Brown horn?
Answers
The probability that the offspring will have a white horn is 3 out of 4, or 75%.
In unicorns, the trait of having a white horn (W) is considered dominant over having a brown horn (w). When two heterozygous unicorns, each carrying one dominant white horn allele (W) and one recessive brown horn allele (w), are crossed, the probability of their offspring having a white horn can be determined using Punnett squares.The possible genotypes of the parent unicorns are Ww and Ww. When these genotypes are crossed, the potential offspring can inherit one of the following genotypes: WW, Ww, Ww, or ww. Out of these options, three of them (WW, Ww, Ww) contain at least one dominant white horn allele, resulting in a unicorn with a white horn. Therefore, the probability that the offspring will have a white horn is 3 out of 4, or 75%. This calculation is based on the assumption that the genetic traits are inherited independently and follow Mendelian inheritance patterns.For more questions on genotypes
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Note: The question would be as
In unicorns, having a white horn (W) is dominant to having a brown horn (w). Two heterozygous unicorns are crossed. What is the probability that the offspring will have a white horn?
true or false: concept that cells or organisms maintain specific internal conditions
Answers
True hope it helps :>
Answer:
A balance inside the body or cells of organisms is called homeostasis.
Explanation:
Hope this helps. God bless
inguinal lymph nodes are found in
Answers
Lab 9: Kingdom Plantae (12 Points) Introduction Plants are defined as multicellular eukaryotes with cell walls made of cellulose. Nearly all of them contain chlorophyll and carry out photosynthesis. Being photoautotrophs, plants can make all their own organic molecules. All they need is energy from light, carbon from carbon dioxide, water, and various elements (like N, P, K, Ca, and Mg). Water can be absorbed into a plant by osmosis, but it can only travel a few cells away from a source. In order to transport water long distances, some groups of plants have specialized tissues (vascular tissue). Plants without vascular tissues must live in wet areas and cannot grow very tall. Consult the plant lecture, slides, and links on Canvas for more information on defining features of plants and groups of plants. Part 1: Comparing major groups of plants Within the plant kingdom, biologists separate plants into four major groups: bryophytes (mosses and llverworts), pteridophytes (ferns), gymnosperms (conifers), and anglosperms (flowering plants). The separations are primarily based on anatomical structures, particularly the ones they use to transport water in their bodies, and on the different ways in which plants reproduce sexually. **What to submit for this activity** Use the information from lectures, the textbook, and any other sources of your choice to fill out the table comparing the four major groups of plants. Submit your completed table as part of what you upload to the Canvas lab assignment for this week. (5 Points) What are one or more examples? Do they have vascular tissue (xylem and phloem)? Which part of the life cycle/generation is more dominant in structure? (Gametophyte or Sporophyte?) What other characteristics can help you identify this group? (List at least 2 or more) Mosses and liverworts (Bryophytes) Ferns and relatives (Pteridophytes) Conifers (Gymnosperms) Flowering plants (Angiosperms)
Answers
Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.
PLS ANSWER ASAP Which of the following would most likely cause a mutation?
The placement of ribosomes on the endoplasmic reticulum
The insertion of a nucleotide into DNA
The movement of tRNA out of the nucleus
The release of mRNA from DNA
Answers
Answer:
The insertion of a nucleotide into DNA
Answer:Acquired (or somatic)
Explanation:mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
Your spinal cord is part of your central nervous system.
True or false?
Answers
Answer:
The answer is True the spinal cord is part of your Central Nervous system, or CNS.
Which would be a measure in determining body composition?
amount of water excreted a day
amount of protein consumed
the percentage of fat in the body
the percentage of sugar consumed
Answers
Answer:
It's the percentage of fat in the body..
Explanation:
I just took it and got all of them right.
Answer:
It's the percentage of fat in the body..
Explanation:
Which of these is an example of elemental carbon?
A.
Diamond
B.
Methane
C.
Proteins
Answers
The example of elemental carbon is diamond and it is pure form of carbon. Thus, option A is correct.
What is elemental carbon?Elemental carbon is pure form of carbon and it does not contain other elements and present in natural form. Due to this reason it is known as elemental.
In elemental form pure atoms are not attached to any other atom. Example is diamond which is allotrope of carbon in which there is only carbon atom attached to each other.
Methane and proteins are compounds consist of a combination of carbon and other elements and they are not come in category of elemental carbon.
Therefore,the example of elemental carbon is diamond and it is pure form of carbon. Thus, option A is correct.
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Name at least 2 organelles depend on the ER & describe how they rely on each other
Answers
Answer:The ER also contains domains that contact the plasma membrane (PM) and other organelles including the Golgi, endosomes, mitochondria, lipid droplets, and peroxisomes.
Biomagnification results in higher amounts of toxic substances for organisms on the food chain
True
False
Answers
Answer:
Biomagnification results is higher in amount of toxin substances so the answer is true
Explanation:
Submission 3 Capstone Project: How can you make your community more environmentally sustainable? Below are 3 Crosscutting Concepts. Select two and provide an explanation for how your investigation/”research” on energy usage in the home addresses them.
1.Crosscutting Concepts Patterns: Observed patterns in nature guide organization and classification and prompt questions about relationships and causes underlying them. Explanation
2. Cause and Effect: Claim uses empirical evidence to differentiate between cause and correlation, and supports specific cause and effect relationships. Explanation
3.Explanation Stability and Change: Analysis and explanation of geoscience data and global climate models show that a change in one Earth system can result in feedbacks (negative or positive) that can stabilize or destabilize a system. Explanation
Answers
Crosscutting Concept: Patterns
Patterns observed in the natural world facilitate organization and classification, as well as raise inquiries about the underlying relationships and causes.
During my exploration of energy usage in residential settings, I discerned several discernible patterns. For instance, a prominent pattern emerged, indicating that the bulk of energy consumption in homes pertains to heating and cooling, followed by lighting and appliances. Moreover, I discovered that energy usage displays notable variations based on factors such as dwelling size, number of occupants, and climatic conditions.
These identifiable patterns enable us to comprehend the factors influencing energy consumption and identify avenues for conservation. By acknowledging that heating and cooling dominate energy use, we can channel our efforts towards enhancing the efficiency of these systems.
Patterns Cause and Effect?Utilizing empirical evidence, claims can differentiate between causal relationships and mere correlations, thus supporting the establishment of specific cause and effect linkages.
During my investigation into energy usage in residential environments, I employed empirical evidence to unveil distinct cause and effect associations. For instance, I observed a positive correlation between energy consumption and dwelling size. This relationship can be attributed to the increased energy requirements for heating and cooling in larger homes.
Similarly, I discovered that energy consumption rises alongside the number of occupants. This phenomenon arises due to the presence of more individuals utilizing appliances and lighting fixtures.
These cause and effect relationships foster a deeper comprehension of how our choices impact energy consumption. For instance, if we aspire to curtail our energy usage, we can opt for smaller homes or limit the number of occupants.
Crosscutting Concept: Stability and Change
Analysis and explication of geoscience data and global climate models reveal that modifications within one Earth system can yield feedback loops, which can either stabilize or destabilize the system.
Throughout my examination of energy usage in residential settings, I ascertained that alterations in a single energy-consuming appliance or behavior can trigger a chain reaction affecting other appliances and behaviors. Consider replacing inefficient light bulbs with energy-efficient alternatives; this simple change can prompt a behavioral shift to turn off lights when leaving a room, subsequently resulting in a substantial reduction in energy consumption.
These feedback loops empower us to comprehend how our choices can influence the environment. For instance, collectively opting for reduced driving can mitigate air pollution and greenhouse gas emissions.
By comprehending the crosscutting concepts of patterns, cause and effect, and stability and change, we can make informed decisions regarding energy usage. These choices enable us to diminish our environmental footprint and forge a sustainable future.
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I need help please, there are 2 questions.
1. According to the reading passage, biomass from forests in these states could replace 1.4 percent of coal used for power. Based on mid-1990s consumption, calculate how many tons of biomass would be required for one year of power for the New England states, Pennsylvania, and New York?
2. If the average biomass for the area is about 150 tons per hectare, how many hectares would be required to fill this need?
Answers
As per the given diagram, about 950 short tones or 862 tones of biomass is consuming per year in US states. If 150 tones fills in one hectare, then 5.7 hectare is needed to fill the need per year.
What is biomass ?Biomass is the fuel enriched in decomposed plants and animals. Both coal and biomass are non-renewable sources of energy. However, coal is not environmental genuine because, it produces toxic gases that raise the global warming.
From the diagram it is clear that, in mid 90s the consumption of coal is greater than other years. It is about 950 short tones or 862 tones.
If 150 tones are filling one hectare. Then, the land required for 862 tones is about 5.7 tones a year. Thus, land deposition by biomass went to a serious issue.
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What does the presence of these coral fossils suggest about the location of North America 370 million years ago?
Answers
Answer:
These fossils indicate that North America must have had a much warmer (i.e a tropical environment 370 million years ago)
Explanation:
Corals are marine animals whose skeletons are easily fossilized and thus have an extensive fossil record. There are many fossils of extinct corals in North America. For example, Lophophyllum is a North American extinct genus of corals dated at 320 million to 290 million years ago (i.e., from the Late Carboniferous period). In general, corals live in warm seawater, and thereby their fossil records can be used as indicators of environmental conditions.
6. Comparing a house to the cell... The brick walls of the house are the boundary of the house, A generator turns fuel into energy Doors control inputs and outputs. Material going out is broken down in a trash compactor before leaving the house. Conveyor belts move parts from one machine to another A large computer controls everything inside the factory. a. What part of the house serves as the boundary? b. For each of the house parts choose an organelle that best matches the function of the organelle in the cell. Provide an explanation for your choice. 1. The computer is similar to the Why?
Answers
Answer:
a. Brick walls
b.
Brick walls - cell wall; is a boundary, gives the house structure like cell wall
Generator - mitochondria; turns fuel into energy like a mitochondrian that turns glucose into energy
Doors - cell membrane; controls what enters and what leaves like the cell membrane
Trash compactor - lysosome? vacuole? Breaks down waste and expells it
Conveyor belts - Endoplasmic reticulum (ER); moves materials around within a cell
Computer - nucleus; Contains all the genetic material that is used to direct every single cellular process similar to the computer that controls everything in the factory
Which are vital signs?
O temperature, respiratory rate, and weight
O muscle mass, height, and weight
Oheart rate, temperature, and height
temperature, respiratory rate, and heart rate
Answers
The correct combination of vital signs is temperature, respiratory rate, and heart rate.
Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.
Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.
The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.
Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.
Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.
In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.
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