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Natalka [10]
3 years ago
10

Nitrogen-fixing cyanobacteria are critically important ecologically. True or false?

Biology
1 answer:
LenaWriter [7]3 years ago
5 0

Answer:

See Explanation

Explanation:

Yes, this is true because some bacteria in our environment tends to either fend off of or kill other types of bacteria. In this case, this bacteria is helpful because it turns gaseous nitrogen into a form that can be absorbed and used by plants in our environment.

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During the _______ phase, the muscle is returning to resting length.
tangare [24]

Answer:

The correct answer is: Eccentric phase.

When talking about movement, we are talking about the activation of muscle fibers in order for this process to happen. In order for this to happen, motor neurons must activate the phases of muscle excitation, contraction and relaxation, so that the sarcomeres, and thus the fibers, can generate movement.

In essence, there are three stages, or phases, to complete muscle movement:   the concentric phase, which is when the muscle fibers are excited and begin the process of contraction. This means the muscle fibers will contract and generate movement, generating a shortening. Then we have the isometric stage, a moment in which there is no longer any more shortening of the muscle fibers, so basically, the movement is held and there is no further contraction, but neither is there relaxation of the muscle fibers. Finally, we have the eccentric phase. This phase is characterized precisely because it is the moment when the muscles begin to return to their resting position.

3 0
3 years ago
How to Define life ?​
Bad White [126]

The condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.

This is the definition of life.

7 0
3 years ago
Read 2 more answers
Which word best describes the tone of the excerpt? A. mysterious B. mocking C. frustrated D. troubled
Taya2010 [7]

Answer:C. frustrated

Explanation:

5 0
3 years ago
Symptoms of uric acid.​
irina [24]

Answer:

Elevated uric acid levels lead to a condition known as "Hyperuricemia."

Explanation:

This condition occurs when there is an excessive presence of uric acid in the blood. It can be divided into:

  • Primary hyperuricemia
  • Secondary hyperuricemia

Primary hyperuricemia occurs when the kidneys are not able to eliminate uric acid in an efficient/proper way. This can be due to the consumption of foos that are very high in purines. For example, liver, gravy, alcoholic beverages, and some vegetables such as spinach and asparagus.

Secondary hyperuricemia may occur to several possible reasons. For instance, kidney disease, in which the kidney is not able to eliminate uric acid; chemotherapy, which may lead to the accumulation of uric acids; or medications that increase the level of uric acid in the blood.

Symptoms include:

  • Fever.
  • Extreme and abnormal fatigue.
  • Joint inflammation.
  • Urination problems.
  • Kidney stones.

To prevent this disease and as part of a treatment (along with medications prescribed by a doctor), a patient should opt to consume foods that are low in purine, such as lettuce, tomatoes, cereals, fruits, milk, eggs, amongst others.

7 0
3 years ago
How are proteins and nucleic acids related?
Nostrana [21]

Answer:

Explanation:

The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

Hope this helped

4 0
3 years ago
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