Answers
Answer:
1. A clock with internal mechanical parts comprises a system because it is a combination of various parts that a heterogeneous in nature and function working together to achieve one end - indicating the time accurately.
Some mechanical clocks comprise of at least 10 parts namely:
Gear train: This component alone is a sub-system that comprises of at least 8 parts. These parts are broadly classified into wheels, pinions, and barrels.Main SpringPalletEscapement Escapement WheelBarrell Barrell WheelBalance Spring etc2. A clock is a non-living system.
Living systems have certain characteristics. Some of them are:
Stimuli: Response to the environmentGrowth and development: The are able to increase in size and dimensionsHomeostasis: this is the capability of self-regulation regardless of external conditions such as temperature and pressure. etc3. A cannot support a living system. It can however help a human being (which is essentially a combination of various systems) to tell the time.
4. a system is a combination of heterogeneous parts that work in unison to form a whole complex entity that can perform one or more functions.
Cheers
Related Questions
Mrs. Ever hart developed the theory that all bulldogs are great pets . After all her bulldog Meatball is a wonderful dog .... do that sound like a statement or scientific theory .?
Answers
Which statement best describes how a catalyst can speed up a chemical reaction?
The catalyst decreases the activation energy needed.
The catalyst increases the concentration of products.
The catalyst binds to enzymes to release substrates.
The catalyst increases the concentration of reactants.
Answers
Whether by altering the enzyme shape, changing chemical reaction pathways, or performing a different action, catalysts decrease the amount of energy needed to make the reaction occur (activation energy).
answer with explanation thank you
Answers
Part A:
The genes for feather color and texture are independently assorted, with light blue being more dominant than smooth and dark blue. It appears that the characteristics for wing colour (light blue vs. dark blue) and wing texture (smooth vs. ridged) are separately assorting based on the observed ratios of offspring with various combinations of wing colour and texture.
Part B:
One theory for why lactose tolerance evolved in humans is that increased selection during famines led some individuals to have a different food supply and increased fat consumption, which offered more resources for improved fitness. These two possibilities may serve as theories for the evolution of lactose tolerance in humans. One characteristic often seen in people with a history of dairy farming is the ability to digest lactose (the sugar contained in milk) from infancy.
Therefore, the correct options for Part A and Part B are B and B &D respectively.
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Vertebrates
Scenario
Mikayla, Jordan, and Seth went on a trip to the zoo. They took lots of pictures of all the animals
pictures of the animals and plants into groups. The chart below shows how they organized their
they saw. They wanted to organize their photos, so they decided to work together to classify the
pictures.
Crab
Beetle
Worm
Fish
Trout
Goldfish
Animals
Name:
Invertebrates
Birds
Hawk
Robin
Amphibians
soning
Frog
Salamander
Lizard
Alligator
Mammals
Whale
Humans
Date:
Plants
Seed Producer
Tomato plant
Flowering plant
Apple tree
Non-Seed
Producer
Fem
Moss
Algae
Prompt
Write a scientific explanation describing which chart is incorrect and why.
Claim:
Answers
Amphibians are cold-blooded animals that are born in water and breathe through gills as larvae, but then develop lungs and live on land as adults. They also have smooth, moist skin and lay their eggs in water.
Reptiles, on the other hand, are also cold-blooded, but they are born on land and breathe through lungs throughout their lives. They have scaly skin and lay their eggs on land.
Alligators belong to the class Reptilia, along with other animals such as turtles, snakes, and lizards. Therefore, the chart that lists the alligator as an amphibian is incorrect and needs to be revised to reflect the correct classification of the animal as a reptile.
Webbed feet is a recessive trait in iguanas. The chart shows the prevalence of alleles for webbed feet over three generations. Analyze the data for evidence of evolution. Choose all the statements supported by the data.
Answers
Answer:
A,C,D
Natural selection is occurring, Webbed feet became more common over time, There is a selective advantage for iguanas with webbed feet
Explanation: Did it on USA Test prep
The statements which is supported by the data include the
following:
Natural selection is occurring.Webbed feet became more common over time.There is a selective advantage for iguanas with webbed feet.What is Selective advantage?These are the traits which gives an organism better chances of
survival and reproduction when compared to others.
In the case of Iguanas, their webbed feet developed over time
as a result of natural selection occurring. This created a
selective advantage as it can swim and dwell in water.
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Which of the following is NOT an example of a biological model? (all answers choices 2nd slide)
Answers
Answer:
pictures of different ecosystems
Explanation:
i got it right
Explain the traits of the volcano type stratovolcano
Answers
Answer:
A stratovolcano is a tall, conical volcano composed of one layer of hardened lava, tephra, and volcanic ash. These volcanoes are characterized by a steep profile and periodic, explosive eruptions. The lava that flows from them is highly viscous, and cools and hardens before spreading very far.
What does relative humidity measure?
Answers
Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature.
In comparison to the greatest amount of moisture that might be present at that temperature, relative humidity measures how much moisture is really in the air.
The amount of moisture in the air as compared to the maximum amount that might exist at given temperature is measured as relative humidity. It shows how saturated the air is with water vapour and is given as a percentage. A greater relative humidity signifies that the air is drier and is more likely to be approaching its maximum moisture-holding capacity than a lower relative humidity.
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Hebb's postulate from 1949 states "When an axon of cell A is near enough to excite cell B and repeatedly or persistently takes part in firing it, some growth process or metabolic change takes place in one or both cells such that A's efficiency, as one of the cells firing B, is increased." Give an example of how synaptic plasticity results in: a. Growth processes b. Metabolic changes
Answers
Answer and Explanation:
Synaptic plasticity can be defined by the dynamic state capable of producing and enhancing selectively the direction and the activity of neurons in neural circuits.
Synaptic plasticity may play important roles during growth because it is a feature that has the potential to act as a feedback in order to excite and inhibit functions associated with signaling pathways. For example, it has been shown that neurotrophins modulate the synaptic plasticity, thereby controlling the growth and development of the central nervous system.
Synaptic plasticity may also be associated with metabolic changes. For example, the synaptic plasticity enables to modify those cellular preferences associated with the use of energy derived from fats and carbohydrates in the cell.
In an estuary, where is the fresh water coming from?
Answers
Answer:
An estuary is a partially enclosed body of water where fresh water from rivers and streams mixes with salt water from the ocean. The fresh water in an estuary typically comes from rivers and streams that flow into the estuary from the surrounding land. These rivers and streams may be fed by a variety of sources, such as melting snow, rainwater, and underground springs.
The amount of fresh water that flows into an estuary can vary greatly depending on the location and the climate. In some cases, the fresh water may be the dominant component of the estuary, while in other cases the salt water may be more dominant. The mix of fresh and salt water in an estuary is known as brackish water.
Estuaries are important habitats for a wide variety of plants and animals, and they are often called the "nurseries of the sea" because they provide a safe and productive environment for many species of fish and other marine life to grow and reproduce.
Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
The belly buttom is located on the ___ Surface
A( Cranial
B( ventral
C( dorsal
D( inferior
Answers
Answer:
B ventral
Explanation: underside of a person basically belly button or stomach
what is the relation between chromatin ,dna,gene,chromosome?pls answer in simple words
Answers
Answer:
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material between
7
1 Point)
I
what kind of angle is this?
Answers
PLEASE PLEASE HELP !!!
which two statements describe the Mesozoic Era?
A. most of earths history took place within this time
B. it is also known as the Age of Reptiles
C. plants began to colonize land during this Era
D. it lasted from about 250 million years ago to 70 million years ago
Answers
Answer:
it should be B and C!:) im not really sure abt C though.
In corn plants the allele for green kernels (G) is dominant over clear kernels (g). Cross a homozygous dominant plant with a homozygous recessive plant. Fill in the Punnett square below and give the ratios for each question beneath the Punnett square
Answers
100% of the offspring will have a heterozygous genotype (Gg) with green kernels phenotype, as it is the dominant allele.
The trait “hairy ear rims” is thought to be controlled by a gene on the Y chromosomes. State with what frequency a man affected with “hairy ear rims” passes the trait onto his sons.
Answers
have fun with to the bus for me and you know what I do to you and your mom is influenced and I don't know how to the summar
Match the following
1. If not properly disposed of and treated, this can spread deadly bacteria.
soil
2. Drinking water that is contaminated by bacteria or chemicals can cause this.
100 gallons of water
3. Water pollution affects the earth's water supply as well as this.
water
4. The average person in America uses this each day.
water cycle
5. This occurs when livestock waste or crop chemicals enter the water supply.
sewage
6. This is the constant movement of water between the earth and the atmosphere.
agricultural pollution
7. Every living thing on earth needs this.
diarrhea
Answers
Answer:
1. Sewage
2. diarrhea
3. atmosphere
4. 100 gallons of water
5. agricultural pollution
6. water cycle
7. water
Explanation:
Answer:
1. Sewage, 2. Diarrhea, 3. Agricultural Pollution, 4. 100 Gallons of Water, 5. Soil, 6. Water Cycle, 7. Water. I took it on Edge so I know the answer. I hope you and everyone reading this have a good day!
For her research, Ananya frequently accesses a new database that contains functional data relating to the human genome. This database was likely created during what phase of the ENCODE project?
Group of answer choices
pilot phase
analysis phase
sequencing phase
technology development phase
Answers
The ENCOD project was a collaborative effort aimed at identifying all functional elements in the human genome. It consisted of several phases, including the pilot phase, technology development phase, sequencing phase, and analysis phase.
What is ENCOD?
The ENCODE (Encyclopedia of DNA Elements) project was a collaborative research effort aimed at identifying all functional elements in the human genome. The project was launched in 2003 with the goal of creating a comprehensive catalog of functional elements, such as genes, regulatory elements, and chromatin modifications, and to understand how these elements work together to control gene expression and cellular function.
Since the database that Ananya accesses contains functional data, it was likely created during the analysis phase of the ENCODE project. During this phase, the raw data generated in the sequencing phase was analyzed and interpreted to identify functional elements such as genes, regulatory regions, and chromatin modifications.
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Industrial melanism refers to the dark pigmentation that evolved in some insects giving them protective coloration on vegetation darkened by soot in heavily industrialized areas prior to air pollution regulation. Assume that in one heavily polluted area near Birmingham, England in 1956, 79% of the moths of the species Biston betularia were black due to the presence of a dominant gene for melanism. Estimate the frequency of the dominant allele in this population, and the proportion of black moths that are heterozygous.
Answers
Answer:
The frequency of the dominant allele, p = 0.542The proportion of black moths that are heterozygous 2pq = 0.496Explanation:
According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.
In the same way, the sum of genotypic frequencies equals 1, this is
p² + 2pq + q² = 1
Being
p the dominant allelic frequency,q the recessive allelic frequency,p² the homozygous dominant genotypic frequencyq² the homozygous recessive genotypic frequency2pq the heterozygous genotypic frequencyIn the exposed example, 79% of the moths of the species Biston betularia were black due to the presence of a dominant gene for melanism.
If the genotypic frequency of back moths is 0.79, then, by performing the following equation we can get the not-black moths genotypic frequency:
p² + 2pq + q² = 1
where p² is the homozygous dominant genotypic frequency, q² the homozygous recessive genotypic frequency, and 2pq is the heterozygous genotypic frequency.
As 0.79 is the phenotypic frequency of black moths, then this frequency equals p²+2pq.
Clearing the equation:
p² + 2pq + q² = 1
0.79 + q² = 1
q² = 1 - 0.79
q² = 0.21
The genotypic frequency of non-black moths is 0.21. So, from here we can calculate the allelic frequency:
q² = 0.21
q= v 0.21
q = 0.458
If 0.46 is the allelic frequency of non-black moths, then by clearing the equation p + q = 1, we can get the p allelic frequency:
p + q = 1
p + 0.458 = 1
p = 1 - 0.458
p = 0.542
The genotypic frequency p² = (0.542)² = 0.294The heterozygote genotypic frequency2 x p x q = 2 x 0.542 x 0.458 = 0.496
Finally, we can check this answer by clearing the following equation:
p² + 2pq + q² = 1
0.294 + 0.496 + 0.21 = 1
If the surface soil is saturated and precipitation increases, there will be
a. a decrease in the amount of groundwater
b. an increase in the rate of capillarity
c. a decrease in the surface elevation of the lake
d. an increase in the amount of runoff
Answers
Which of the following lists best illustrates the idea of increasing levels of complexity?1) Cells, tissues, organelles, organs, systems.2) Tissues, cells, organs, organelles, systems.3) Organs, organelles, systems, cells, tissues.4) Organelles, cells, tissues, organs, systems.
Answers
There exist different levels of organization in nature, which go from the smallest things like atoms, to the most complex systems like ecosystems. In the exposed situation, the correct increasing order is Organelles, cells, tissues, organs, systems.
------------------------------------
According to the composing elements, we can find many different organization levels in nature.
Organelles: These are molecular subcellular structures that carry out one or more specific functions in the cell. Cell: Molecules get grouped in living cellular units that have auto replication capabilities. It is the smallest structural unit capable of functioning by itself. A cell is capable of communicating with other cells. When they receive signals from the exterior, they respond in varying ways. Their membranes delimitate them and protect them, constituting a selectively permeable barrier. Cells There are different cells with different sizes, shapes, and forms.Tissue: A tissue is the organization and association of the same type of cells. Each tissue performs different functions. These tissues can be epithelial, adipose, nervous, muscular, and etcetera. Organ: An organ is composed of different tissues that work together in a more complex function. Tissues form structures such as the heart, lung, kidney, brain, and etcetera. Each organ has its function. Systems: When different units -organs or individuals- get associated and work together, they become a system. By working together stably, these associated units maintain homeostasis.-----------------------------------------
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How many miles from the North pole do you have to travel to find the first tree?
Answers
Answer:
In the Tagia Forests, 1,000 miles south of the North Pole, in the Arctic Tundra.Explanation:
What is known as the arctic tundra stretches from the North Pole all the way to the south. It's still roughly around 1,000 miles from the North Pole until you reach the Tagia Forests, which are located in the baren snows of the arctic.
Design a scientific experiment, complete with all of the steps of the scientific method. It doesn't have to be complicated. It could be a cooking experiment, a gardening/growing experiment, etc. Make certain you have a strong hypothesis that can be tested.
Answers
Answer:
Hypothesis: Adding fertilizer to tomato plants will result in faster growth and larger yields of fruit.
Experiment:
Observation: Two identical tomato plants are selected for the experiment. One will be the control group (without fertilizer), and one will be the experimental group (with fertilizer).
Research: The types of fertilizer available, their recommended usage, and their impact on plant growth and yields are researched.
Variable selection: The independent variable will be the use of fertilizer, while the dependent variables will be plant growth and fruit yield.
Experimental setup: The tomato plants are grown in identical pots, with identical soil and sunlight exposure. The control plant receives no fertilizer, while the experimental plant receives a recommended amount of fertilizer every other week.
Data collection: Over a period of two months, measurements are taken of the height and width of the plants, as well as the number and size of the tomatoes produced.
Data analysis: The data collected is analyzed for any differences in plant growth and fruit yield between the control and experimental groups.
Conclusion: Based on the data collected and analyzed, a conclusion is drawn as to whether or not the hypothesis was supported by the experiment.
Further experiments: If the hypothesis is supported, further experiments may be conducted to determine the optimal amount and frequency of fertilizer for tomato plant growth and yield.
Explanation:
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Is the same kind of soil used for all the plants in nurseries
Answers
Answer:
A good soil for nurseries is the correct mixture of sand, clay and organic matter. Top soil from a forest is usually a good soil. To see if a soil is good try and roll it into a pencil sized roll. (The soil should be damp but not wet.)
Explanation:
if it helped uh please mark me a brainliest :))The 2 meters of DNA that makes up the human genome is able to fit in one cell because the chromatin is ______.
Multiple choice question.
A. only used once and then packed into rodlike chromosome
B. organized around proteins
C. digested and reformed on a regular basis
D. wound around the inner circumference of the cell membrane
Answers
Answer:
B. Organized around proteins
Explanation:
Because the chromatin is arranged around proteins, the 2 meters of DNA that make up the human genome may fit in one cell.
How does a DNA fit into every cell?Because the entire DNA strand must fit inside the cell's nucleus, it must be wrapped very tightly. The DNA is wound around structural histone proteins, which serve as a scaffolding for the DNA to be wound around, to achieve this.
Do 2 meters of DNA exist?Human cells contain around 2 meters of DNA if it were stretched end to end. Yet, the nucleus, which contains the DNA, has a diameter of only around 6 micrometers. This is equivalent to stuffing 40 km (24 miles) of extremely, geometrically speaking.
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Video: Washington State is Thinning Out Forests to Reduce Wildfire Risk. PLEASE ANSWER QUESTIONS ASAP!!
1. What is Russ Vaagen producing in his new sawmill?
2. How do his methods differ from logging that was done in the past? How does this help prevent fires?
3. How has Mike Peterson’s opinion on logging evolved? Why did he change his mind?
4. Do you think that this type of logging solution will work in the long run? Why or why not
Answers
Answer:
Explanation:
1
the conservation
of matter principle.
1. 4P + 50₂ P4010
a. Does the equation above support the conservation of matter? Explain your
answer.
Answers
A fundamental tenet of classical physics is the law of conservation of matter, which states that matter cannot be created or destroyed in an isolated system but can only change its form.
What is the Law of Conservation of Matter?A law is a broad statement that explains a lot of observations in science. A law must be repeatedly tested in various scenarios before it is accepted. Since laws are generally regarded as being unbreakable, they are the highest form of scientific knowledge. The fundamental building blocks of science are laws.The law of conservation of matter is one scientific principle that lays the groundwork for comprehension in the field of chemistry. The amount of matter in any system that is closed to the transfer of matter (in and out) remains constant, according to this statement. The amount of matter in a system is conserved, which is a succinct way of expressing this law.To Learn more About conservation of matter refer to :
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The equations are not balanced. Which equation would have the same coefficients in the same order as 2CO2 + 3H20 C2H6O + 3O2? FeCl3 + NH4OH Fe(OH)3 + NH4Cl CH4 + O2 CO2 + H2O Fe + H2SO4 Fe2(SO4)3 + H2 PCl5 + H2O HCl + H3PO4
Answers
Answer:
Unbalanced= Fe + H2SO4 Fe2(SO4)3 + H2
Balanced with same coefficients in the same order= 2Fe + 3H2SO4 ---> Fe2(SO4)3 + 3H2
Explanation:
Balancing a chemical equation means having the same number of atoms of an element on the reactant side as on the product side in accordance to the law of conservation of mass. To do this, coefficients (number behind the element) are used.
In this question,the below balanced equation was given
2CO2 + 3H20 ---> C2H6O + 3O2
Four other unbalanced equations were also given to be balanced and see which will have the same coefficients in the same order as the template equation. Let's start balancing each equation.
1. FeCl3 + NH4OH ---> Fe(OH)3 + NH4Cl (unbalanced)
Atoms of nitrogen, hydrogen, oxygen and Chlorine are unequal in both sides. Hence, we have
FeCl3 + 3NH4OH ---> Fe(OH)3 + 3NH4Cl (balanced)
2. CH4 + O2 ---> CO2 + H2O (unbalanced)
Atoms of hydrogen and oxygen are unequal in both sides. We have;
CH4 + 2O2 ---> CO2 + 2H2O (balanced)
3. Fe + H2SO4 ---> Fe2(SO4)3 + H2 (unbalanced)
Atoms of iron, sulphur, and oxygen are unequal in both sides. Hence,
2Fe + 3H2SO4 ---> Fe2(SO4)3 + 3H2 (balanced)
4. PCl5 + H2O ---> HCl + H3PO4 (unbalanced)
Atoms of chlorine, hydrogen, and oxygen are unequal in both sides. Hence,
PCl5 + 4H2O ---> 5HCl + H3PO4 (balanced).
From the above balanced equations, it can be observed that; 2Fe + 3H2SO4 ---> Fe2(SO4)3 + 3H2 has the same coefficients in the same order as 2CO2 + 3H20 ---> C2H6O + 3O2
That is, coefficient 2---- 3 ---- 1 ----- 3.
Taking into accoun the law of conservation of matter, the reaction 2 Fe + 3 H₂SO₄ → Fe₂(SO4)₃ + 3 H₂ has the same coefficients in the same order as 2 CO₂ + 3 H₂O → C₂H₆O + 3 O₂
In first place, you have the balanced equation:
2 CO₂ + 3 H₂O → C₂H₆O + 3 O₂
The coefficients of the balanced reaction in order are: 2 -3- 1- 3
Law of conservation of matter
The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.
Balance a chemical equationConsidering the law of conservation of matter, you must balance the chemical equation.
For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts
On the other side the coefficients located in front of each molecule indicate the amount of each compound for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.
By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.
This caseConsidering what was expressed above and the reactions given, the following balanced reactions are obtained:
FeCl₃ + 3 NH₄OH → Fe(OH)₃ + 3 NH₄ClCH₄ + 2 O₂ → CO₂ + 2 H₂O2 Fe + 3 H₂SO₄ → Fe₂(SO4)₃ + 3 H₂ PCl₅ + 4 H₂O → 5 HCl + H₃PO₄The coefficients of each balanced reaction in order are:
1 -3- 1- 31 -2- 1- 22 -3- 1- 31 -4 -5 -1Finally, the reaction 2 Fe + 3 H₂SO₄ → Fe₂(SO4)₃ + 3 H₂ has the same coefficients in the same order as 2 CO₂ + 3 H₂O → C₂H₆O + 3 O₂
Learn more:
https://brainly.com/question/3347267?referrer=searchResultshttps://brainly.com/question/16916038?referrer=searchResultshttps://brainly.com/question/15137238?referrer=searchResultshttps://brainly.com/question/16867271?referrer=searchResultsAre Clark’s nutcracker consumers or producers?
Answers
The clarks nutcrackers are going to be consumers
How are the Nuts crackers consumers?Clark's nutcrackers are consumers. They are a species of bird that belongs to the family Corvidae and they feed on the seeds of various species of pine trees, which they collect and store in caches to eat later.
As consumers, they play an important role in the ecosystem by helping to disperse the seeds of the pine trees they feed on, which helps to maintain the health and diversity of the forest ecosystem.
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