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Leona [35]
4 years ago
11

Why are getting sleepy????​

Biology
1 answer:
grin007 [14]4 years ago
8 0
So, when our eyes see light, our brain gets signals that make us feel awake. But when its dark, the signals make us feel tired. ... When your body releases more melatonin, you feel more tired. The human body starts releasing melatonin in the evening around bedtime and continues throughout the night.



I hope that answers your question
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Which of the following about abiotic factors in ecosystems is true?
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<span>c. abiotic factors are part of a dynamic system.</span>
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1.Where are red blood cells formed and destroyed?<br>​
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Explanation:

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Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed
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3 years ago
You are interested in studying a gene called CFTR because mutations in this gene in humans cause cystic fibrosis. You have made
inna [77]

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C) The mouse CFTR gene and human CFTR gene encode proteins that can serve a similar function.

Explanation:

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In the given experiment, human CFTR gene is able to function in mouse and restore the lost body functions. This is because human and mouse CFTR gene show high level of similarity due to which they code similar proteins which can function in each other's place. However this does not mean that DNA sequence of the genes is identical. There is still some difference between them because they are two different species.

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