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atroni [7]
2 years ago
9

Why was the evolution of cyanobacteria such a significant event in Earth's history

Biology
1 answer:
mestny [16]2 years ago
8 0

Explanation:

oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.

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The stomata you view on the surface of the leaves are used in gas exchange and the guard cells regulate this exchange. What do y
beks73 [17]

Answer:

They will collapse and shut off the stomatal pore

Explanation:

The guard cells are regulated by the presence of water. When water is present, they become turgid and open up the stomatal pore and when water is inadequate, they become flaccid, collapse and close up the stomatal pore as a result.

<em>If the leaf is left under the microscope for too long, there will be loss of water by evapotranspiration and the guard cell will become flaccid and collapse as a result and the stomatal pore will become closed.</em>

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3 years ago
The force ultimately responsible for mass movement
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Answer:

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Heterotrophs hope this helps.
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The purpose of meiosis<span> is to reduce the normal diploid cells  to haploid cells, called gametes.

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Which end of the water molecule attracts most of the electrons and acts negative?
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