4. What causes rocks to change from one type to another? L

Answer:

.I do not have an answer for this

Answer:

answer number 3 onion is correct answer

The sugar and phosphate portion of the nucleotides are found "as segments of the rails" on the DNA twisted ladder.

Answer:

Their diet

Explanation:

Over time, all of the finches adapted to their food source. This caused the evolution of their beaks to begin.

The missing element that is needed to make collagen in cellulose is  vitamin C, zinc, copper and manganese to make the triple helix.

Glycine, proline, and hydroxyproline are the three amino acids that make up collagen.

Cellulose synthesis is gaining popularity not only because cellulose is a major component of plant cell walls, but also because it has the potential to become a major resource for renewable biofuels.

The cellulose structure is made up of long polymer chains of glucose units connected by a beta acetal linkage.

The image on the left depicts a very small section of a cellulose chain. The monomer units are all beta-D-glucose.

Amino acids are the building blocks of proteins. These amino acids form protein fibrils with a triple helix structure.

To form the triple helix, your body also requires adequate amounts of vitamin C, zinc, copper, and manganese.

Thus, the missing elements are vitamin C, zinc, copper and manganese.

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A short-term environmental change would a very small asteroid or comet impact on Earth most likely cause is called Surface craters

Answer:

1. Negative Feedback

2. Negative Feenback

3. Positive Feedback

Answer:

D. Tongue rolling

Explanation:

Not many people can do this

D. Tongue rolling

A discontinuous variant refers to such things as eye color or blood group, that have a restricted number of possible values. In other words, someone's blood can be A, B, AB, or O, but it can not be something in between.

Examples of discontinuous variants encompass tongue rolling, fingerprints, eye color, and blood groups. continuous variation fluctuates around an average or a mean of species. Discontinuous variation does not have an average or mean.

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Answer: I would tell them about the water pressure temperatures and the sea life that would live in the sea.:)

Explanation:

Answer:

canopy fogging and quadrat sampling

Explanation:

Scientists use several methods to measure biodiversity. These include canopy fogging, quadrat sampling, transect sampling, and netting. The method used depends on the types of organisms ecologists are counting and on the habitat.

Plant cells have plastids and larger vacoule and they also have tough cellulosic cell wall outer to cell membrane as a covering.

Animal cells don't have cell wall rather they have cell membrane as it's outermost covering and they have smaller vacuoles.They also don't have plastids.They have centrosome which is not found in plant cells.

Answer:

first responders

Explanation:

no need for explaining

The cluster of polar bears that live along the eastern coast of Russia build a population. The correct option is D.

The group of organisms living in a particular area forms the population of that given area.

As given, a cluster of polar bears that live along the eastern coast of Russia build a population.

Thus, the correct option is D.

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Answer:

A is the answer

Explanation:

please mark me as brainlist

Answer:

Nectar in flowers serves chiefly to attract pollinators, such as fruit-eating bats, hummingbirds, sunbirds, and insects. Nectaries are usually located at the base of the flower stamens, which draw animal visitors into contact with the pollen to be transferred.

Explanation:

Answer:

"Medical Definition of condyloid joint

an articulation (as that between the metacarpals of the hand and the first phalanx of the fingers) in which an ovoid head is received into an elliptical cavity permitting all movements except axial rotation"

Explanation: "Condyloid joints, also known as ellipsoid joints, are composed of an egg-shaped bone known as a condyle that fits into a similarly shaped cavity. Although it sounds similar to a ball and socket joint, condyloid joints only allow for forward-backward and side to side movement and do not allow rotation."

simply looked this one up hope it helps

hypothermal vent community.Chemosynthetic symbioses predominate in most deep-sea ecosystems, but they can also infrequently be found at near the surface vents and seeps.

The euphotic zone, which can be found up to 200 metres (656 feet) beneath the surface, is the uppermost portion of a marine ecosystem.Light levels are enough for routine photosynthetic activity at this depth.This area is home to most aquatic life.

An ecosystem known as the intertidal zone can be found on sea shorelines, where a wide variety of creatures can tolerate changes in tide levels.

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Droughts that are more frequent and severe, storms, heat waves, rising sea levels, melting glaciers, and warming oceans can all hurt animals, ruin their habitats, and disrupt people's livelihoods and societies.

Long-term increases in the earth's average surface temperature, as well as large-scale changes in global, regional, and local weather patterns, are caused by a considerable increase in the levels of greenhouse gases created by the burning of fossil fuels.

Dangerous weather events are growing more common and severe as climate change progresses.

Glacier melting occurs as a result of heat changes, particularly at relatively high temperatures. This is a process in which ice transforms from solid to liquid or water. Scientists have recently detected an alarming rate of glacier melting.

Unusually hot days and multi-day heat waves are a natural component of the weather's day-to-day fluctuations. Hotter-than-usual days and nights are becoming more prevalent as the Earth's temperature warms (see the High and Low Temperatures indicator), and heat waves are anticipated to grow more often and intense.

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Use of bioagent is a good way to eliminate invasive species from an ecosystem.

In my opinion, to eliminate the invasive species from an ecosystem we should find out its bioagent instead of chemical spraying because bioagent does not adversely affected the environment.

The risks of the gene drive getting into another species are not worth gaining biodiversity in an ecosystem because it leads to many consequences and unpredictable effects on ecosystem.

So we can conclude that use of bioagent is a good way to eliminate invasive species from an ecosystem.

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Yes, it is a good way to eliminate invasive species from an ecosystem. This is because invasive species play a critical role in the limitation of biodiversity of a particular ecosystem.

Biodiversity may be defined as the sum total of all the variety of living organisms in a particular ecosystem.

No, the risks of the gene drive getting into another species are not worth gaining biodiversity in an ecosystem. This is because it directs considerable influences and unanticipated impacts on the ecosystem.

Therefore, it is well described above.

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1. Short-term hormonal influences on animal behaviour usually occurring late in life  - activational effects

2. A technique that associates a natural response to a stimulus to an unrelated stimulus; also called Pavlovian conditioning  -- classical conditioning

3. The study of animal behaviour in its natural environment  - ethology

4. When an animal learns not to respond to a stimulus  - habituation

5. Finding a solution to a once unsolvable problem  - insightful learning

6. Learning that has taken place but is dormant until a situation requires it  - latent learning

Activational effects are the sudden or immediate temporary transient effects of behavioural changes due to the influence of hormones, especially the gonadal or these hormones. The behaviour change in male animals due to an increase in male se hormonal activity can be referred as an activational effect.

Classical conditioning facilitates learning of a behaviour when a conditioned stimulus is associated with an unconditioned stimulus leading to a conditioned response. Animal training by pairing a new unconditioned stimulus with an already known conditioned stimulus, a new conditioned response of behaviour change can be observed.

Ethology refers to the scientific zoological study (includes both laboratories as well as natural field studies) of animals' behavior with relation to their natural environment. It studies and compares about animal behavioral processes changes under various disciplines like ecology, anatomy, evolution etc.

Habituation is an associative learning process that results when an animal learns to resist a stimulus and not to respond to it after repeated exposure.  

Insightful learning occurs when various parts of a problem are analyzed and their relationship is understood to arrive at the solution suddenly. Animals must look at a situation as a whole, and observe and analyze it to solve the problem. Some animals like chimpanzees can learn through insightful learning

Latent learning occurs without any associated reinforcements. Animals learn new behaviour through latent learning.

Thus, this could be the answer.

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Answer:

reproduction

Explanation:

different traits

Answer:

Tilapia is one of the most productive and internationally traded food fish in the world. The production of farmed tilapia is among the fastest expanding food sectors in the world. Nile tilapia ( Oreochromis niloticus) is the most cultured freshwater species among the farmed tilapia and contributes about 71% of the world total tilapia production.

Tilapia is one of the most important farmed fish species worldwide (FAO 2018) and an important source of protein (Fitzsimmons 2000;Hai 2015). Due to its sequenced genome (Conte et al. 2017), easy reproduction, efficiency in adapting to diverse diets, high resistance to diseases and handling practices, and high tolerance of a wide variety of husbandry conditions, it is considered an ideal model in toxicological research.

Explanation:

I hope it helps

I will revise the simulation so users can evaluate the role of human activity in the pH of the ocean by lowering the temperature.

This is referred to as power of hydrogen and is the measure of acidity or alkalinity of a substance.

The variables which would be changed in the simulation to accomplish it is  the increase in oxygen levels.

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If a person increased the amount of saturated fat in his or her diet, then the person would be more likely to suffer from heart and blood vessel-related disease and obesity as well.

Because saturated fatty acids are completely saturated with hydrogen, they require more energy to break down and generally remain in the solid at room temperature, as well as inside the body, where they can induce heart-related diseases and obesity by blocking blood vessels. For example, butter contains saturated fatty acids, which are generally not recommended in large quantities.

Hence, if a person increased the amount of saturated fat in his or her diet, then the person would be more likely to suffer from heart and blood vessel-related disease and obesity as well..

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Taking into account the definition of kinetic, potencial and mechanical energy, the correct answer is option B: the gravitational potential energy of the system increases from 2 J to 66 J.

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.

On the other hand, potential energy is the energy that measures the ability of a system to perform work based on its position. In other words, this is the energy that a body has at a certain height above the ground.

Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the force of gravity.

Finally, mechanical energy is that which a body or a system obtains as a result of the speed of its movement or its specific position, and which is capable of producing mechanical work. Then:

Potential energy + kinetic energy = total mechanical energy

The principle of conservation of mechanical energy indicates that the mechanical energy of a body remains constant when all the forces acting on it are conservative (a force is conservative when the work it does on a body depends only on the initial and final points and not the path taken to get from one to the other.)

Therefore, if the potential energy decreases, the kinetic energy will increase. In the same way, if the kinetics decreases, the potential energy will increase.

The principle of conservation of mechanical energy can be applied in this case.

A model train running on an inclined track is part of a closed system that has 316 J of mechanical energy.

The kinetic energy of the train is 314 J at the beginning.

Replacing in the definition of mechanical energy:

Potential energy + 314 J = 316 J

and solving you get:

Potential energy = 316 J - 314 J

Potential energy= 2 J

Then, the potential energy of the train is 2 J at the beginning.

The kinetic energy of the train is 250 J at the end.

Replacing in the definition of mechanical energy:

Potential energy + 250 J = 316 J

and solving you get:

Potential energy = 316 J - 250 J

Potential energy= 66 J

Then, the potential energy of the train is 66 J at the end.

Finally, the correct answer is option B: the gravitational potential energy of the system increases from 2 J to 66 J.

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Answer:

Precipitation

Explanation:

Precipitation refers to a process causes dissolved substances to be left behind to form minerals after water in lakes or ponds evaporates.

Answer:

Models use familiar objects to represent unfamiliar things. Models can help you visualize, or picture in your mind, something that is difficult to see or understand. Models use familiar objects to represent unfamiliar things.

Explanation:

Models can help you visualize, or picture in your mind, something that is difficult to see or understand. Models can help scientists communicate their ideas, understand processes, and make predictions

The answer is

Amount of sunlight or water.

As growth depends on sunlight and water so it is important to grow a plant in proper sunlight and giving plants regular water is also important.

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Explanation:

Beginning from the outside, they are: the corona - the outermost, hot shell of the atmosphere. the chromosphere - a transparent layer between the corona and the photosphere. the photosphere - the visible "surface" of the Sun.

Explanation:

The chromosphere is above the photosphere, the visible "surface" of the Sun. It lies below the solar corona, the Sun's upper atmosphere, which extends many thousands of kilometers above the chromosphere into space. The plasma (electrically charged gas) in the chromosphere has a very low density

Answer:

destruction of natural habitats

Explanation:

First let's define our main terms or each answer choice.

1)Decreased deforestation - Deforestation is the action of clearing mass amounts of trees for human use such as farms, buildings, houses etc. So this answer is basically saying that as the human population increased the amount of trees that get destroyed will decrease.

2)Destruction of natural habitats - Natural habitats is simply the natural home of animals. So this answer is saying as the human population increases the more number of animals natural homes will be destroyed

3)Unchanged climate - Climate is basically the long term weather of an area. So this answer choice is saying that as the human population increases the climate will remain unchanged.

4)Increased biodiversity - Biodiversity is the different kind of life on earth usually regarding a specific habitat or ecosystem. So this answer choice is essentially saying that as the human population increases the types of life on earth increases.

What comes with increased human population?

As the human population increases the need for food, houses, water, jobs etc increases as well. Keep that in mind while looking at the answer choices.

Determining the answer

Why the answer isn't A

Rereading 1) and then what comes with increased human population we can most definitely rule out A. As human population increases the need for houses and jobs increases. In order to have a good enough supply of wood and land for these houses and buildings for these jobs, deforestation must occur. So as human population increases deforestation would increase as well.

Why the answer is B.

Rereading 2) and then looking at what comes with increased human population we can maybe say that B is correct. Looking back at the previous section we've already identified that mass deforestation must occur to satisfy the needs for wood and land for houses and jobs for the increased population. As we know many animals probably live in these forests and inside of the trees so many of these animals homes would be destroyed resulting in the destruction of natural habitats ( animals homes )

Why the answer isn't C

After rereading section 3) and what comes with increased human population we can rule out C. If an increase in human population results in deforestation the amount of CO2 released into the air increases as well. If you didn't know trees absorb CO2 which is bad for the atmosphere. Once destroyed the trees release the CO2 that they have absorbed. CO2 and other green house gases create holes in our atmosphere leading to a change in climate as the suns radiation travels through these little holes. This results in a change in temperature, increased natural disasters and the melting of ice on the poles which also leads to increased temperatures. Deforestation isn't the only cause of this ( gasoline from cars, burning of fossil fuels , pesticides and many other human caused actions result in this ). These are all human caused things so if the human population increases the amount of green house gase emissions would likely increase as well meaning the climate would no remain unchanged.

Why the answer isn't D

After reading section 4) as well as the section titled "why the answer is B" we can rule out D. In order for an increase in biodiversity to occur, natural habitats must be preserved ( remain untouched ) if deforestation occurs then natural habitats will be destroyed and biodiversity will never increase as many animals may not be able to find another sustainable habitat. Not only that but the question asks about a negative affect and biodiversity is a good thing.