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Mass extinction happens when many individuals of a species are lost within a short period while regular extinction happens over a longer period of time.

Mass extinction refers to the loss of many species within a short period of time.

Mass extinction can be caused by catastrophic events that result in the destruction of habitats, climate change, extreme temperature change, volcanic eruptions, and so on.

If the loss of species happens over a long period of time, it is no longer considered mass extinction but regular extinction.

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Answer:

basic needs, such as food water air shelter..etc

Explanation:

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Answer:

The ecoregion stretches 2,000 km west-to-east, and 1,000 km north-to-south, across the Arctic Ocean north of Norway and Russia. It covers the island groups of Svalbard (Norway), Franz Josef Land (Russia), Severny Island (Russia), and Severnaya Zemlya (Russia).

Explanation:

Answer:

yes

Explanation:

yes yes yes yes yes yes yes yes

2

Well, a chemical bond is a connection between two surfaces or objects that have been joined together, so it's reasonable that it's 2

Answer:

Biopsy

Explanation:

Biopsy:-

It is a process in which thorough surgery a piece of tissue is removed from your body .

Answer:

viruses are a non-living collection of molecules that need a host to survive.

bacteria are free-living cells that can live inside or outside a body

Explanation:

Answer:

it looks lustrous, malleable and ductile.

Explanation:

When you look at the ladder you can see the metal next to the step looks shiny.  Noticing how the ladder is bent you can tell it is malleable. It also look ductile bc different parts of the metal is thinner than the other.  
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Answer:

Lysosomes break down macromolecules into their constituent parts, which are then recycled. These membrane-bound organelles contain a variety of enzymes called hydrolases that can digest proteins, nucleic acids, lipids, and complex sugars. The lumen of a lysosome is more acidic than the cytoplasm.

A human cell will be affected once it is infected with ribovirus by resulting in the following:

This is an organelle which serves as a site for protein synthesis. When they are shut down by a ribovirus, they create negative effects.

The effects are mentioned above and makes it the most appropriate choice.

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Answer:

Yes, a common example of this is hemophilia. Pedigrees can determine patterns in generations and can represent a trait with a half-shaded circle, fully shaded circle, or a blank circle.

•Relationship between living environment and non living environment.

Answer:

•Living things need nonliving things to survive. Without food, water, and air, living things die. Sunlight, shelter, and soil are also important for living things. Living things meet their needs from living and nonliving things in ecosystems.

Explanation:

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Forests act as habitats for wildlife, acts as carbon sinks, help reduce soil erosion, and influence local and regional climate.

These are services that forests provide for the biotic component of the ecosystem.

Forests serve a wide variety of services to humans and animals. They act as sinks for carbon, provide habitats for wildlife, provide foods for humans and animals, protect watersheds and soils, among several other services.

Forests are also able to influence local and regional climate due to their ability to serve as sinks for carbon dioxide, a greenhouse gas capable of causing warming.

Forests, however, may not serve recreational purposes, except they are specifically modified to do such.

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Answer:

they have high average temperatures

Explanation:

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Answer:

D

Explanation:

Flowers can turn into fruit and that fruit will most likely hold seeds for example strawberries you can see the seeds in the outer skin.

Answer:

OPTION D

Explanation:

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Troposphere is the answer

An increase in ATP levels would tend to inhibit the PDH.

After the break down of glucose through the metabolic pathway known as glycolysis, the end product, pyruvate, is converted to acetylChoA in the citric acid cycle.

Pyruvate dehydrogenase (PDH) is the first enzyme of the citric acid cycle that is activated by its substrate pyruvate and inhibited by its products acetylChoA together with Adenosine Triphosphate (ATP).

This means that an increase in ATP negatively regulates the enzyme, pyruvate dehydrogenase.

Therefore, an increase in ATP levels would tend to inhibit the PDH.

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Answer:

The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body. THE DEGISTIVE TRACT begins at the mouth and ends at the anus. It is like a long muscular tube, up to 10 metres long, with digestive organs attached along the way.

Answer:

The subatomic particles in the nucleus of a carbon atom are protons and neutrons.

Explanation:

The atomic nucleus contains protons and usually neutrons (except for hydrogen-1 (protium) atoms. The number of protons is an element's atomic number and is the same for all atoms of an element. Carbon has atomic number 6. So all atoms of carbon have 6 protons in their atomic nuclei. Carbon atoms also contain neutrons in their atomic nuclei, which may number 6, 7, or 8.

Carbon Cycle

Are you talking about the carbon cycle

[MA]:

Carbon cycle.

Writer's Note: Sorry if this is wrong, i was never good at things like this.

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Answer:

answer is c

Explanation:

The cell needs a lot of preparation and checks in G1, S and G2 to do mitosis. especially in the G1 phase which is the longest phase. It is explained by the fact that the cell should "rest and recover" after the last mitosis before getting into the second one

Answer: C

Explanation: I took the quiz

Answer:

Leaves were generally lost as a water conservation measure so that transpiration would not drain the cactus of water in its desert environment. Stems grew into large reservoirs to hold any water brought into the cactus.

Answer:

The presence of misfolded proteins elicits cellular responses that include an endoplasmic reticulum (ER) stress response that may protect cells against the toxic buildup of misfolded proteins [3–7].

Answer:

The phobia is called Ommetaphobia.

Explanation:

Ommetaphobia describes an extreme fear of eyes. Like other phobias, this type of fear can be strong enough to interfere with your daily routine and social activities, while also being considered irrational because of the lack of any “real” danger.

Answer:

There are multiple answers for a strong or weak base

For a strong one, you can put sodium hydroxide

and for a weak one, you can put methylamine

what makes an acid or base weak or strong is if the acid or the base has a high conductivity of electricity

pH is the measurement of hydronium

Answer:

1. because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products.

2.The difference in the concentration of a substance between two areas is called the concentration gradient . The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse. The direction of diffusion is said to be 'down' or 'with' the concentration gradient.

3.The greater the difference in concentration, the quicker the rate of diffusion. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.

4.The greater the surface area, the faster the rate of diffusion.

Explanation:

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