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olga nikolaevna [1]
3 years ago
14

What is the answer for 21

Biology
1 answer:
Georgia [21]3 years ago
6 0

Answer:

pretty sure d

Explanation:

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The heavier the object the _____________________ _____________________ it has if it has the same velocity at all masses.
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Answer:

C) More momentum

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The heavier the object the more momentum it has if it has the same Velocity at all masses.

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Which statement correctly describes interactions between organisms in this ecosystem?
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An ecosystem involves both the biological (plants, animals, human beings) and non-biological (land, water, soil, and atmosphere) community which interacts as a system. More importantly, the living things are very dependent on the abiotic community since it cannot survive by itself. Every animal, plant and human needs the primary physiological needs of water, food and shelter provided by the abiotic system.   
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Once blood delivers oxygen, what does it pick up from cells on its way back to the heart?
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Your answer is C) Carbon Dioxide.

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How has photosynthesis developed in different types of plants?
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Explanation:

Plants have been using light in this primal way for a large chunk of Earth's existence. But just how did they gain the ability to photosynthesize? The short answer is they stole it, about a billion and a half years ago, when single-celled organisms called protists engulfed photosynthesizing bacteria.

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3 years ago
Give a fact about red blood cells
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Answer:

Red blood cells (erythrocytes)

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