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myrzilka [38]
3 years ago
10

In the carbon cycle, how do humans return carbon to the atmosphere?

Biology
1 answer:
Lunna [17]3 years ago
3 0

Answer:

through breathing out.

Explanation:

during exhalation carbon dioxide is given out and goes to the atmosphere.

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If a fully differentiated mammary gland cell were to divide, what type of cell would you expect to be produced?
Papessa [141]

1. The cells would be for repair.

2. Cells grown in serum free or reduced medium are termed donor cells starved. It is done by biologist to synchronize all the cells in same phase of cell cycle.

Explanation:

1. If a fully developed mammary gland cell divides it would be daughter cells for repair by mitosis or during turn over of normal cells.

2. The term starved for donor cells means to deprive the cell of nutrients by growing them in reduced or serum free medium.

The reason biologist use this technique is to synchronize all the cells in same phase of the cycle as Go phase of cell cycle.

3.In the egg containing the donated somatic cell is reprogrammed by host machinery. The enucleated egg incorporated with somatic cell nucleus is given an electric shock. The cell becomes viable ready to divide and produce a viable organism.

After continuous mitotic divisions, cell becomes blastocyst.

This furthur divisions will produce organism not ball of mammary gland cells. The plueripotent stem cells are obtained by this technique.

4 0
4 years ago
What happens in the cytoplasm of prokaryotic cells
Tatiana [17]
The cytoplasm of prokaryotic cells also houses the ribosomes required for the manufacture of protein. There can be many ribosomes in the cytoplasm. For example, a rapidly growing bacterium can contain upwards of 15,000 ribosomes.
7 0
2 years ago
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Which of the following is true about the Calvin cycle?
Flura [38]

Answer:

The second answer is correct

3 0
4 years ago
Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of
ki77a [65]

Answer:

Diffusion

Explanation:

As substances like oxygen are non polar and are not dissolved in water they can diffuse through the cell membrane without the need of channel proteins whereas polar molecules would be repelled by the hydrophobic tails of the phospholipid bilayer an would need a channel protein

5 0
3 years ago
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In chipmunks, the dominant allele (H) codes for short-haired fur and the recessive allele (h) codes for long-haired fur. What is
zmey [24]

Answer:

50% will have long hair!

Explanation:

When you cross between Hh and hh, two out of four are Hh, which is long hair, and two are hh, which is short hair.

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