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HACTEHA [7]
3 years ago
5

The boundaries of a country is similar to what in a cell? ...

Biology
1 answer:
Sophie [7]3 years ago
8 0

Answer:

The Cell Wall

Explanation:

Im Smart

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Here, took me some time ;)

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Why are there no small organisms in the bathyal zone?
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There are no known organisms because of the lack of sunlight necessary for photosynthesis to produce these organisms

Explanation:

The bathyal zone is less densely populated. Sunlight does not reach this zone, meaning primary production, if any, is almost nonexistent

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3 years ago
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suggest and explain how the flow of blood in a person with patent ductus arteriosus differs from that of a person with a healthy
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Ductus Arteriosus is a blood vessel normally present in fetuses during development. The blood vessel is designed to bypass the pulmonary artery and brings blood to the Descending Aorta, as the fetus cannot breath through the lung (being as they are fluid filled). This is normally not a problem because oxygenated blood comes from the mother's blood supply.

Patent Ductus Arteriosus, is what happens when that vessel does not close. While not as dangerous as other congenital defects. However, because there is still a bypass, blood that normally need to be oxygenated by going through the pulmonary arteries to the lungs, can be diverted and placed into the blood stream without vital oxygen. This condition may eventually lead to CHF (congestive Heart Failure) and Pulmonary Hypertension if not treated.
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What is the role of cyclins in a cell?​
svetoff [14.1K]

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Control of cell transition from one phase of the cell cycle to another

Explanation:

Control of cell transition from one phase of the cell cycle to another is not the only role of cyclin in the cell.

The role of cyclin C and H in the processes of transcription regulation is shown.

Cyclin H, together with the transcription factor TFIIH, plays a role in the phosphorylation of the CTD-tail of RNA polymerase II during the transcription process.

Cyclin L participates in the processes of primary transcript processing.

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