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Rus_ich [418]
3 years ago
9

During the fetal period the ____ rapidly develops.

Biology
1 answer:
Lady_Fox [76]3 years ago
6 0
Is it multiple choice? I believe it's brain, but I could be wrong. 
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Alternate forms of a gene that lead to alternative traits are called
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We have already talked about another class of chemicals that helps send signals in the body—neurotransmitters. How are neurotr
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Similarities: both are chemical messengers, both can have (but don't necessarily have) similar structures (made from amino acids), both can be produced by the central nervous system (hypothalamus produces some hormones), certain molecules can act as both hormones and neurotransmitters (example: norepinephrine).

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2 years ago
9. Most animals make energy available for cell activity by transforming the
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neither

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