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Rus_ich [418]
4 years ago
9

Over evolutionary time, photosynthesis has, in effect, introduced challenges to itself by producing an oxygen atmosphere because

Biology
1 answer:
jenyasd209 [6]4 years ago
3 0
<span>In the process of photosynthesis, carbon dioxide is taken from the atmosphere and oxygen is realased. But now with the evolution, the atmosphere has much more oxygen than carbon dioxide. So the first step of absorbing carbon dioxide itself has been challenged by the process of photosynthesis.</span>
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If a person develops chronic lymphocytic leukemia, what leukocytes may be involved and how mature are they in the bloodstream? C
Hatshy [7]

Answer:

The correct answer is -

anemia- erythrocytes

easy bleeding- platelets

Repeated infections - leucocytes

enlarged lymph nodes- leucocytes

shortness of breath- erythrocytes

excessive bruising- Platelets

Explanation:

Cancer of the lymphocytes is chronic lymphocytic leukemia (CLL). Lymphocytes are a type of white blood cell involved in the body's immune system.

Platelets are tiny blood cell fragments that help your body form clots to stop bleeding. The platelets then rush to the site of damage and form a plug, or clot, to repair the damage.

Erythrocytes are red blood cells that travel in the blood. They carry oxygen from the lungs to the body and bring carbon dioxide back to the lungs to be expelled.

Leucocytes- White blood cells (also called leukocytes or leucocytes and abbreviated as WBCs) are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

6 0
3 years ago
In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen
Galina-37 [17]

Answer:

In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen? They move into and out of living systems. process in which chemical energy is used to produce carbohydrates. ... single-essential nutrient that limits productivity in an ecosystem.

Explanation:

3 0
4 years ago
What must happen for a nation’s standard of living to improve?
USPshnik [31]
<span>A. remain stable. B. grow through innovation. C. reach economic equity. D. allow the central government to make economic decisions    it would be (b) if these are the answers</span>
8 0
3 years ago
Explain the process of cellular respiration and why it is important for the<br> cell.
wariber [46]
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Hope this helps :)
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Hope this helps:)
6 0
4 years ago
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