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Delicious77 [7]
3 years ago
11

Each day your body makes (.......BLANK.....) red blood cells.

Biology
1 answer:
sveticcg [70]3 years ago
3 0
The answer is 200 billion i believe
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Florida is hot most of the year. Will a cougar show seasonal changes?
rusak2 [61]

Answer:

No, because the cougar can always find a food source in Florida.

Explanation:

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5 0
2 years ago
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Paraphin [41]

Answer:

homeostasis is in yourr endocrine system. its if your blood suger is too low or high. if its too high your cells will absorb glucose. if its too low, your cells will release glucose.

Explanation:

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Fill in the blank Competition drives natural selection as individual members of a species compete with each other for limited na
maks197457 [2]

Answer:

1. Intraspecific

2. speciation

3. fossil record

4. The fossil record provides empirical evidence for evolution because it shows that species now aren't the same as species that existed in the past and that small changes happen over time to create new species.

5. A geographic variation in the fossil record occurs when two similar organisms occupy the same time span in two different places. These organisms hold the same purpose within the overall ecology.

6. A more detailed fossil record is preferable for supporting evolution because it allows for the instances of gradual change to be recorded and placed into broader speciation events.

7. Fossils provide a great many intermediaries that connect past species with their living descendants.

8. Intraspecific competition is competition that occurs within species. This is the competition that drives natural selection.

Explanation:

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8 0
3 years ago
Action potential propagation in a skeletal muscle fiber ceases when acetylcholine is removed from the synaptic cleft. Which of t
klasskru [66]

Answer:

a) Acetylcholine is degraded by acetylcholinesterase.

Explanation:

After it binds for its receptor on the plasma membrane of the postsynaptic cell, acetylcholine must be removed in order to prevent repeated stimulation. Acetylcholinesterase is enzyme for the inactivation of acetylcholine, present at all cholinergic synapses. This enzyme hydrolyses acetylcholine and breaks it to the acetate and choline. Choline can be reused for the synthesis of the new acetylcholine molecule so it is taken back into the presynaptic cell.

6 0
3 years ago
Why do many diseases such as measles occur only once in a person yet others such as colds occur more than once?
mezya [45]

Answer:

This happens because of our immune system. Our immune system keep record of every attacking microbe. It contains two type of while blood cells firstly is T cell that respond quickly to the attacking microbe. While secondly B cells that recognize those specific cells and fights them off. In addition to that B cells clones itself as memory cells for that disease and will remains in your body for years

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