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Blizzard [7]
3 years ago
11

Help!

Biology
1 answer:
Amiraneli [1.4K]3 years ago
5 0

Answer:C

Explanation: Atmosphere is gases and biosphere is living things on earth's surface. Therefore we can eliminate a and b because those involve the hydrosphere. We can also eliminate d because nothing in there talks about the atmosphere. Carbon dioxide comes from the atmosphere and trees are part of the biosphere so that would have to be the answer.

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Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

3 0
2 years ago
Which of the following is FALSE about elements?
trapecia [35]

Answer:

I believe the answer to be E because it says atom and it is asking what is false about elements.

Explanation:

4 0
3 years ago
Chuck consumes a meal that contains protein. How will chucks body use this protein
Serhud [2]

Answer:

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3 0
2 years ago
Which surface exhibits the highest albedo measurement?
Lelu [443]
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3 0
3 years ago
Suppose a drug is developed that blocks K+ leakage channels. The drug prevents ions from passing through those channels. If this
Sav [38]

Answer: 1. The resting membrane potential would become less negative (more positive).

Explanation:

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In a resting brain, there are gradients of concentration across the Na+ and K+ membranes. Forces shift their gradients down through channels, resulting in a separation of charges that provides the potential for rest. The membrane is much more permeable to K+ than to Na+, so the resting potential is similar to K+'s potential for equilibrium.

Hence, the correct option is 1. The resting membrane potential would become less negative (more positive).

7 0
2 years ago
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