Sublimation, vaporization, and fusion (melting). A substance changes states as it enters a higher energy state and exits a lower energy one, releasing energy in between.
Which phase transitions demand the elimination of energy?The opposite process, condensation, involves the transfer of heat from a substance to its surroundings. The temperature of the surroundings rises as a result of this release of latent heat. To for a vapor to condense, energy must be taken away from the condensing particles.
Which three phase transitions call for heat to be removed?A substance turns from a gas to a liquid or a solid when heat is removed from it. It is important to emphasize these two things. First, two phases can coexist simultaneously at a substance's melting or boiling point.
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Show the reciprocal cross: A red-eyed female (homozygous) and a white-eyed male. How many offspring will have white eyes and what is their sex?
When we see the reciprocal cross between a red-eyed female (homozygous) and a white-eyed male,we observe that none of the offspring will have white eyes. Additionally, the sex of the offspring will be half male and half female since the ratio of males to females is 1:1.
The reciprocal cross for a red-eyed female (homozygous) and a white-eyed male can be shown as follows:Female (XrXr) x Male (XwY). Females have two X chromosomes and males have an X and a Y chromosome. Red eyes are dominant to white eyes; therefore, we use Xr to represent red eyes and Xw to represent white eyes.
The offspring are as follows:All F1 females are heterozygous (XrXw).All F1 males are hemizygous (XrY).The F1 generation will have red eyes since the dominant allele is present.
None of the F1 individuals will have white eyes as the recessive allele is not present in the F1 generation.
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Pls I need help I need answer
Answer:
cells
Explanation:
tissues is a group of cell with same function.
How can certain composite volcanoes (stratovolcanoes) become significantly life-
threatening without actually erupting or by undergoing only a minor eruptive event local
to its summit?
Stratovolcanoes, also known as composite volcanoes, can become significantly life-threatening even without erupting only minor eruptive events due to various hazards associated with them.
What are the hazards?
Firstly, these volcanoes are often steep-sided and composed of layers of solidified lava, volcanic ash, and other volcanic materials, which can easily collapse and trigger landslides. These lahars can flow down the sides of the volcano at high speeds and cause extensive damage to the surrounding areas.
Secondly, stratovolcanoes can produce volcanic gas emissions such as carbon dioxide, sulfur dioxide, and hydrogen sulfide, which can accumulate in low-lying areas and pose a serious health hazard to humans and animals.
Thirdly, the heat generated by magma beneath the surface of the volcano can cause the groundwater to boil and produce hot springs and geysers, which can be hazardous to people who venture too close to them.
Lastly, earthquakes and tremors can occur due to the movement of magma beneath the surface of the volcano, which can cause damage to buildings and infrastructure in the surrounding areas.
Overall, even without a major eruption, stratovolcanoes can pose a significant threat to human life and infrastructure due to the various hazards associated with them.
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Concentrated sulphuric acid (98.12 g.mol¹) has a density of 1.5 g/cm³ and is 60% H₂SO4 per mass. The rest is water. How many H* ions are there in a 45 mL concentrated sulphuric acid solution?
The number of hydrogen ions present in 45 mL of concentrated sulphuric acid solution is 4.97 × 10²³ ions.
How to calculate number of hydrogen ions?To calculate the number of hydrogen ions in the acid, we have to calculate the number of moles as follows:
Density = mass ÷ volume
According to this question, concentrated sulphuric acid with molar mass of 98.12 g.mol¹ has a density of 1.5 g/cm³ and is 60% H₂SO4 per mass.
Mass = 1.5g/cm³ × 45cm³ = 67.5grams.
Moles = mass ÷ molar mass
moles = 67.5g ÷ 98.12g/mol = 0.687 moles
If 60% of this quantity contains the acid, then 60/100 × 0.687 = 0.413 moles of acid is present.
There are 2 moles of H+ in sulphiric acid, hence, the no of ions can be calculated as follows:
no of ions = 2 × 0.413 × 6.02 × 10²³ = 4.97 × 10²³ ions.
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Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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Which of the following list the thing plants needs for photosynthesis
Answer:
they need carbon dioxide,water and light
what is the term used for members of a population leaving an area?
The term used for population members leaving an area is "emigration." Emigration refers to leaving one's country or region of origin to settle permanently in another.
What is migration?Migration refers to moving from one place or region to another to live there permanently or temporarily. This movement can be within a country or across international borders. It can be driven by various factors, such as economic opportunities, political instability, social and cultural factors, or environmental disasters.
Why is migration important?Migration has significant social, economic, and environmental implications for the origin and destination areas, including population demographics, cultural diversity, labour markets, and natural resource use.
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Answer: Emigration
Explanation:
Identify three features of the newly formed skin that are different from a healthy patch of skin. Suggest a reason for each of these differences.
Answer:
Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
The skin has three main functions: Protection; Thermoregulation; Sensation.
The skin acts as a protective barrier from:
Mechanical, thermal and other physical injury;
Harmful agents;
Excessive loss of moisture and protein;
Harmful effects of UV radiation.
The newly formed skin have the following features:
Contains newly formed keratinocytes.Appears pinkish and delicateMelanocytes are few.Do not have hair folliclesThe normal patch of skin on the other hand:
It has adequate melanocyte cells.Appears brownish (based on skin color,Already contains keratinocytes.Have hair folliclesThe newly formed skin is formed from the basal layer of the epidermis and slowly these newly formed cells goes to the upper layers.
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what happens to the chemical bonds during chemical reactions
Manatees and seals both share some phenotypic similarities that are adaptations to an aquatic environment. However, seals evolved from a bearlike carnivore and manatees evolved from a hoofed mammal. This example shows that __________.
a. evolution is not always unidirectional.
b. evolution can occur rapidly for one species while the other species stays relatively unchanged.
c. similarity is a good predictor of how long it has been since two species shared a common ancestor.
d. evolution is not always divergent.
They are about as different as a leopard and a cow.
Meaning both are mammals of roughly similar size, and sharing a vaguely similar habitat. That’s the end of similarities.
Seals are carnivorous and manatees are plant eaters, and taxonomically they are in different orders. Seals spend much of the time on land, while manatees are completely aquatic. Seals have thick layer of fat and are adapted to Arctic water, while manatees, despite their roly-poly appearance, have almost no fat and do not handle cold water well at all. Here is the closest a manatee ever gets to an iceberg.
Manatees and seals both share some phenotypic similarities that are adaptations to an aquatic environment. However, seals evolved from a bearlike carnivore and manatees evolved from a hoofed mammal. This example shows that Evolution is not always divergent.
Analyze the given diagram of the carbon cycle below. An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory. Part 1: Which compound does C represent? Part 2: Name a process that could release this compound into the air. Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer. Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer. (10 points)
Answer:
where is the image...please
Shifting biomes could have consequences for the regions in which the shifts occur. Read the two cases below and decide which consequences would apply to one or both cases.Case 1: The biome of a small agricultural community in the western United States changes from grassland to desert. A species of migrating duck, which can carry bird flu, goes locally extinct.Case 2: The biome in northern Russia changes from tundra to taiga. Timber harvesting in the region becomes possible. Arctic foxes go locally extinct and are replaced by red foxes that commonly carry rabies.Sort each consequence based on whether it would apply to Case 1, Case 2, or botha. increased risk of wildfiresb. local economy suffersc. carbon storage decreasesd. agricultural production decreasese. carbon storage increasesf. disease vector range changesg. decreased water availabilityh. local economy thrivesi. species range changesCase 1Case 2Cases 1 and 2
Answer:
increased risk of wildfires- both
local economy suffers- Case 1
carbon storage decreases - Case 2
agricultural production decreases - Case 1
carbon storage increases - Case 1
disease vector range changes - Case 2
decreased water availability - Case 1
local economy thrives - Case 2
species range changes - Case 2
Explanation:
Fires are common to taiga biomes. Owing to the fact that the biome in case 1 changed from an agricultural community to a grassland and subsequently to a desert, agricultural productivity will decrease, the local economy will suffer, water availability is decreased and local economy suffers as a consequence of desertification.
On the other hand, in case 2, the diseases vector range as well as species range changes due to the change in the species of foxes from Artic foxes to red foxes that carry rabies. Carbon storage decreases as the taiga biome acts as a carbon sink. The local economy thrives due to timber production.
Lastly, species range changes both in case 1 and case 2 since there is a loss of species. Species range is the area where a particular species can be found during its lifetime. Certainly, the range of area where species are found changed in cases 1 and 2.
The consequences from the given cases are sorted as:
case 1: b. the local economy, c. carbon storage decreases, d. agricultural production decreases, f. disease vector range changes, i. species range changes, g. decreased water availability
Case 2: a. increased risk of wildfires, e. carbon storage increases, f. disease vector range changes, i. species range changes, h. the local economy thrives
Case 1 and 2 both: f. disease vector range changes, i. species range changes.
Consequences by shifting biomes?Case 1:
The shifting of biome from the agricultural community in the United States changes from grassland to desert result in consequences like decrease in the carbon storage and local economy suffers because of reduction in the agricultural production.
Also since the biome changes to the desert, it results in decreased water availability. Also since the biome changes, a species of migrating duck that carries flu goes locally extinct which implies that there will be a change in the range of species as well as the disease vector changes.
Case 2:
Since the biome in Russia changes from Tundra to Taiga now harvesting becomes possible and due to which carbon storage increases which in turn results in the flourishing of the local economy.
As an increase in the forests, there will be an increased risk of wildfires. Since the c foxes go locally extinct and are replaced by red foxes which carry rabies which implies that species range changes and the disease vector range changes.
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DOES ANYONE KNOW THIS PLEASE HELP
B. Ginkgo Biloba.
Forgive me if this is incorrect
Name an organelle present in plant cells, but not animal cells. What is its function?
Answer:
An organelle that's present in a plant cell, but not in an animal cell would be a cell wall. A cell wall's function is to essentually provide strength and support. But it can also provide a surface for molecules to pass in and out of.
Explanation:
In trisomy 21, an error during meiosis results in
Question 1 options:
three copies of chromosome 21, leading to developmental deficits.
the normal two copies of chromosome 21 and no developmental deficits.
a point mutation.
three copies of chromosome 19.
Down syndrome is caused by non-disjunction during meiotic division. Option A) In trisomy 21, an error during meiosis results in three copies of chromosome 21, leading to developmental deficits.
What is non-disjunction?Non-disjunction is the proper separation failure of chromosomes during anaphase I or II of the meiotic division.
This mistake in segregation results in the production of gametes containing a greater or lesser number of chromosomes than is found in a normal cell. Consequently, the individual may develop a trisomy or monosomy.
Non-disjunction produces aneuploidy, which is a disbalance in the number of cell chromosome copies.
If non-disjunction occurs in meiosis II.
Two gametes will be normal, carrying one chromatid each (n).One of the gametes will have two chromatids (n+1).The last gamete will have no chromatid (n-1).However, if non-disjunction occurs in meiosis I, all the produced gametes will be chromosomally abnormal.
Two gametes will have two copies of a chromosome (2n)Two gametes will not have any chromosomes. There is nullysomia.Nullysomies generate final monosomy after fertilization.
Diploid gametes produce final trisomy after fertilization.
Non-disjunction is a cause of various abnormal medical conditions, including Down syndrome and Turner syndrome.
Down syndrome is a genetic disorder that produces extra genetic material in chromosome 21. Affected individuals express a typical physical appearance, intellectual disability, and developmental delays.
Option A) In trisomy 21, an error during meiosis results in three copies of chromosome 21, leading to developmental deficits.
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which statement is true about fossils?
Answer:
C. A fossil is any trace of prehistoric life
Explanation:
None of the other answer choices are reasonable enough to be true. I hope this can help you!
Look at the picture and name the Consumers and Producers in the food web.
(PLEASE HELP NOW)
Answer:
consumers:
foxbuzzardrabbitmousetitmousegrasshopperbutterflysnakefrogdragonflygreenflyladybirdproducers:
plantainberriesgrasshopperrabbitmousetitmousesnakefrogbutterflyladybirdgreenflydragonflyExplanation:
I might be super wrong lol take this with a grain of salt eheh
2. Name two products that come from living things that are used to aid in human health and healing. Discuss where these products come from and what they do.
Answer: water and wart
Explanation: so we can live and walk
A community includes
Answer:
A community includes both Biotic and Abiotic components of the environment.
Explanation:
Answer:
I got it right
Explanation:
In Study ISland
Choose a trait in your organism that follows a non-Mendelian inheritance pattern . Describe how this trait is inherited and assign for the trait .My organism is great white shark
We can choose the trait for the dorsal fins of the great white shark. The non-Mendelian inheritance pattern that we will choose is incomplete dominance.
Incomplete dominance occurs when the phenotype of the heterozygous offspring is in between the phenotypes of both homozygous parents.
We will assign these traits:
DD- large dorsal fins
Dd- medium dorsal fins
dd- small dorsal fins
This trait can be passed on when the homozygous dominant genotype (DD) is crossed with a homozygous recessive genotype (dd).
Suppose we cross DD X dd, the resulting offspring would be:
Dd, Dd, Dd, Dd- 100% medium dorsal fins
Explain the purpose of hunting seasons.
Answer:
Hunting seasons is the time when it is legal to hunt and kill a particular specie of animal. When the season begins is called open season and each state creates laws and codes governing the season dates and species. Season dates are often timed to occur when the populations is at its maximum. It avoids the peak breeding period when members of a species are particularly vulnerable, and avoids any disruption to mating.
Explanation:
1. When does the fossil record begin? Why is that significant?
2. What are some of the ways that fossils are formed?
3. What is Ardipithecus ramidus? Why is “Ardi" important?
4. What happened to the Neanderthals?
5. What are some interesting features of "Otzi the Iceman"?
Can you make a sentence with the words cell, microorganism, nanometer, microscopic, micrometer, and molecule?
A micro-organism is made up of molecules called cells which can be seen through microscopic techniques with diameter ranging from 0.1-100 micrometer and a DNA of 2.2-2.6 nanometers.
What is a Cell?A cell is the fundamental unit of life. Every living organism is made up of cell.
A cell has three main parts i.e., the cell membrane, the nucleus and the cytoplasm. The cell membrane is the outer-covering of the cell. Nucleus is the organelle which contains important genetic information in the form of nucleic acids- DNA or RNA. Cytoplasm is the fluid fills the cell. All the organelles are suspended in cytoplasm.
Therefore, Cell is the smallest unit that can survive independently.
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how many dogs and cats are euthanized because there is not space for them at the shelters
xt >> The Cycles of Earth: Mastery Test
2
Select the correct the answer.
Which process will decrease the level of CO2 in the atmosphere?
OA. growing trees
The process that will decrease the level of CO2 in the atmosphere is Option A. growing trees.
Growing trees is the process that will decrease the level of CO2 in the atmosphere. Trees play a vital role in the carbon cycle, acting as carbon sinks by absorbing CO2 from the atmosphere through the process of photosynthesis. During photosynthesis, trees use sunlight, water, and CO2 to produce oxygen and sugars that are used for energy and growth. In this process, carbon is captured and stored in the tree's biomass, reducing the amount of CO2 in the atmosphere.
Cutting down trees, on the other hand, will increase the level of CO2 in the atmosphere. When trees are cut down, they release the carbon stored in their biomass back into the atmosphere in the form of CO2. This is a significant contributor to greenhouse gas emissions, which trap heat in the Earth's atmosphere and contribute to climate change.
Burning trees, as in option C, also increases the level of CO2 in the atmosphere. Burning wood releases the stored carbon in the form of CO2 and other greenhouse gases, contributing to the global carbon cycle and furthering climate change.
Increasing the human population, as in option D, does not directly affect the level of CO2 in the atmosphere. However, a larger population may lead to an increase in deforestation and the burning of fossil fuels, which would ultimately increase the level of CO2 in the atmosphere.
Therefore, Option A is Correct.
The question was Incomplete, Find the full content below :
Which process will decrease the level of CO2 in the atmosphere?
A. growing trees
B. cutting trees
C. burning trees
D. increasing the human population
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Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
The concept that makes it legally right to reproduce a substantial portion of the works of another person with permission is Copyright. Option A
What is copyright all about?The concept of copyright grants the creator of an original work the sole rights to its use and distribution, usually for a limited time, with the intent of enabling the creator to receive compensation for their intellectual effort.
When someone else wishes to reproduce a substantial portion of those works, they must usually get permission from the copyright holder.
This permission can take the form of a license or contract that outlin the tems under which the work can be used.
The above answer is in response to the full question below;
Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
A. Copyright
B. Fair use
C. Freedom of information
D. Intellectual freedom
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Which of the following is not a negative consequence of upward urban growth?
a. pollution
b. creation of a "heat island"
c.
d. waste management issues
increased use of surrounding land
Please select the best answer from the choices provided
O A
OB
OC
OD
Answer: your answer is letter C
Explanation: upward urban growth will increase pollution as the number of people will increase .
How much force would the orange man need to use for the 200kg Fridge to accelerate at 5m??
Answer:
We do not have the picture showing what the orange man is doing, but the TOTAL force required is
F = ma = (200 kg)(5 m/s2) = 1000 N
Explanation:
algae makes energy-rich carbon compounds through photosynthesis.
(T/F)
The given statement " Algae indeed produce energy-rich carbon compounds through photosynthesis". is True because Photosynthesis is a vital process that occurs in the chloroplasts of algae cells.
During photosynthesis, algae capture light energy using pigments like chlorophyll and convert it into chemical energy. They utilize this energy to break down water molecules, releasing oxygen as a byproduct, and incorporating carbon dioxide from the surrounding environment. Through a series of enzymatic reactions, algae synthesize glucose, a high-energy carbon compound.
Glucose serves as a primary source of energy for algae, enabling them to carry out essential metabolic processes and sustain their growth. Additionally, algae can convert excess glucose into other energy-rich carbon compounds, such as lipids and starches, which serve as energy storage molecules. These compounds can be used during periods of limited sunlight or nutrient availability.
Overall, algae's ability to generate energy-rich carbon compounds through photosynthesis makes them an important component of aquatic ecosystems and potential sources for renewable energy production and biofuel development.
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A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.