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igomit [66]
2 years ago
14

what accounts for the significant increase in oxygen in earth's atmosphere 2 to 2.5 billion years ago?

Biology
1 answer:
sergiy2304 [10]2 years ago
6 0

Given what we know, we can confirm that the significant increase in oxygen in the Earth's atmosphere 2 to 2.5 billion years ago is due to cyanobacteria.

<h3>What are cyanobacteria?</h3>

These are tiny bacterial organisms. They were amongst the first organisms to use photosynthesis to sustain life. The sudden boom of cyanobacteria accounts for the rapid increase in oxygen given that they will use carbon dioxide to produce sugar through photosynthesis, expelling oxygen in the process.

Therefore, we can confirm that the significant increase in oxygen in the Earth's atmosphere 2 to 2.5 billion years ago is due to cyanobacteria.

To learn more about cyanobacteria visit:

brainly.com/question/832454?referrer=searchResults

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Answer:

Option B) functions to increase sodium reabsorption.

Explanation:

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Aldosterone regulates sodium homeostasis and as such helps to control blood volume and blood pressure.

Aldosterone is secreted in response to decreased blood pressure (hypotension) to increase sodium reabsorption from urine, sweat, and the gut. Also excessive aldosterone levels (too high sodium) can lead to high blood pressure (hypertension).

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3 years ago
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oksano4ka [1.4K]
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coldgirl [10]

Answer:

Keratinocytes are located in the stratum basale in the epidermis and the hair follicle of the dermis. This statement is correct.

Explanation:

Keratinocytes are in the stratum basale of the epidermis, which is the deepest layer of the epidermis; from this layer, they ascend to the stratum spinosum, then to the stratum granulosum, then to the stratum lucidum if the skin is thick like the one that is in our hands or soles, and lastly they end in the stratum corneum. While the keratinocytes move from one layer to the next one, they change their characteristics.

Keratinocytes are also in hair follicles, they are similar to the keratinocytes from the dermis, but have some differences, such as their reproduction capacity.

3 0
3 years ago
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Nutrients nourish the body by providing it with energy and/or contributing to the body's metabolic processes. Nutrients come from food in the form of carbs, fats, and protein, all of which need to be digested by the body before it can use these nutrients.
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