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Goshia [24]
3 years ago
9

In natural systems, nitrogen is lost by denitrification. Predict which of the following processes will be most responsible for r

eplacing lost nitrogen in an ecosystem.
Biology
2 answers:
gulaghasi [49]3 years ago
8 0
The process that will be most responsible for replacing lost nitrogen in an ecosystem would be : Fixation
In fixation,  the ecosystem biosynthesize various substance from plants, animal, etc and forming a new nitrogen

hope this helps
IgorLugansk [536]3 years ago
3 0

The correct answer is:

fixation

Explanation:

Nitrogen fixation is a method by which nitrogen in the Earth's atmosphere is converted into ammonia or other molecules prepared to living organisms. Nitrogen fixation is carried by a diversity of bacteria, both as free-living organisms and in symbiotic association with plants. Because it is the primary source of the nitrogen in the soil, nitrogen that plants need to grow, nitrogen fixation is one of the most critical biochemical processes on Earth

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When an ADP molecule gains a phosphate, it becomes an ATP molecule. This process is called _____.
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2. Describe the role of the following in maintaining a constant body temperature in humans:
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2 years ago
Is blood clotting an example of a positive or negative feedback mechanism? Explain your answer based on the description of the m
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Blood clothing is an example of positive feedback.

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Explanation:

Blood clotting is an example of positive feedback due to the fact that when the vascular endothelium is damaged  platelets will go to this area and activate themselves once they are in contact with the collagen fibers of the damaged structure. When the platelets are activated they will release the contents that is stored in their granules. One of the contents is a Gq-linked protein receptor cascade,  that will increase the concentration of calcium in the platelets. Calcium activates protein kinase C, which, in turn, activates phospholipase A2 (PLA2). PLA2  will modifies  an  integrin membrane  increasing its affinity to bind fibrinogen. The activated platelets change their  shape , and the fibrinogen cross-links with the integrin membrane aiding  in  the aggregation of adjacent platelets. After this the coagulation cascade takes place. there are two pathways the extrinsic  and the extrinsic one.

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If a toxin affects the molecules that signals for platelets, platelets will not go to the damaged area and in consequence there will not be thrombin and fibrin to form the clot together with platelets.

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