Why is an organisms role important for its community?

1 answer:

german4 years ago

4 0

Organisms play an important role in the water cycle. As you know, most organisms contain a significant amount of water .

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Skeletal muscle cells exhibit a phenomenon known as recruitment, in which the number of muscle cells recruited to contract is pr

Sergio039 [100]

Answer:

No, cardiac muscle tissue does not exhibit recruitment.

Explanation:

The cardiac muscle tissue does not recruit cells to contract. The reason is that the cardiac muscle contracts all its cells at once and with the same force. It does not have to recruit other cells since it does not have to lift objects of different weights. The heart's contraction aims to pump blood and to do it rhythmically. The heart has a natural peacemaker, the sinoatrial node. The Sinoatrial node transmits an electrical impulse to all the heart to contract it all at the same time and continuously. For these reasons, the cardiac muscle does not need recruitment.

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3 years ago

Which energy are formed by light depended reations

Ivahew [28]

In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH. The energy that these molecules carry is stored in a bond that holds a single atom to the molecule. For ATP, it is a phosphate atom, and for NADPH, it is a hydrogen atom.

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3 years ago

Use the scale bar to determine the sizes of a mature parent yeast cell and a cell budding from it. You will then calculate the v

Licemer1 [7]

Answer: A mature parent cell is approximately 4 µm, while a budding cell is 3 µm. Since the shape of a yeast is a sphere, we can use the formula below:

V= (4/3)π.r³, considering that π=3,14 and r is for ratio of the sphere, which is half of it's diameter.

For a parent cell, the volume is: 33 µm³

For a budding cell, the volume is: 14 µm³

Since the volume determines how much cytoplasm a cell has, then a budding cell needs to grow the mature parent cell - its own current volume, so the result would be 19 µm³ of cytoplasm.

To calculate the surface area, we use another formula that is presented below:

A= 4.π.r²

For a parent mature cell, the surface is 50 µm²

For a budding cell, the surface is 28 µm²

Since the surface determines how much plasma membrane a cell has, to know how much the budding cell needs to grow up to a mature state is simply using the surface area of the parent cell - the current surface area of it, resulting in 22 µm².

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3 years ago

The smallest group that includes gibbons and humans but ford not include tarsiers is ______ . A. primates B. anthropoids C. homi

alukav5142 [94]

C. Hominoids. They a member of the biological super family Hominoidea, that include all modern great apes and humans and a number of their extinct ancestors and relatives.

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3 years ago

Select all that apply. Plant and animal cells both have _____. a cell wall a cell membrane a large central vacuole endoplasmic r

aalyn [17]

Plants and animal cells share a lot of similarities since they both belong to a same group of cells which is the eukaryotic cells. One similarity they share is the cell membrane. This is the part of the cell which surrounds the cytoplasm of a cell.

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3 years ago