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Gwar [14]
3 years ago
5

Which step in the nitrogen cycle is responsible for returning fixed nitrogen back into the atmosphere?

Biology
1 answer:
Strike441 [17]3 years ago
5 0

Nitrogen has to be converted or ‘fixed’ to a more usable form through a process called fixation .


.

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how do oxygen and carbon dioxide cross from the alveoli through the capillary walls and into the blood?
Fofino [41]

Answer:

The concentration gradient of oxygen in your lungs wants to flow toward homeostasis and oxygen is bound on red blood cells by hemoglobin, along with the attraction of oxygen to hemoglobin. The concentration gradient from carbon dioxide from the capillary to the lungs. There is more oxygen in your lungs (alveoli) than there is carbon dioxide and everything want to reach homeostasis, or level amounts on both sides.

Explanation:

6 0
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The kidneys control the amount of water, ions, and other substances in the blood.
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True due to the hormones that act upon the kidneys Two examples being Antidiuretic Hormone (ADH) and Aldosterone 
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4 0
3 years ago
What must happen to a chromosome before a cell starts mitosis?
slamgirl [31]
The chromosome must be duplicated before mitosis.

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3 0
3 years ago
The organic molecules known as phospholipids are key components of cell membranes and composed of which molecules?
Rudik [331]
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8 0
3 years ago
The largest and most complex mitochondrial genomes come from _____.
alexandr1967 [171]

Answer:

Angiosperm

Explanation:

The mitochondria of flowering Angiosperm plant are the largest. The size of these mitochondria varies from 1.86 million bp to 2.4 million bp. It is also the most complex one as it carries large number of repeating units which allows multiple permutations for recombination. This allows generation of mitochondria of varying sizes with in the same species.

It is least gene dense  as the inter regions are highly expanded. One of the most distinguishing feature of these mitochondria's are that they contain polypeptides. These polypeptides are basically non functional but have potential to evolve into functional one.

8 0
3 years ago
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