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netineya [11]
3 years ago
9

Which area of the brain is most closely associated with alertness?

Biology
1 answer:
elena55 [62]3 years ago
8 0
Alertness is regulated by a group of nuclei (bodies of nerve cells) spread throughout the brain stem and the medulla called the reticular formation.
These nuclei are a relay system that connects the lower parts of the nervous system to the cerebral cortex and integrates signals and information in the brain.
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Identify two general ways chemical mutagens can alter dna.
gavmur [86]
1) compound mutagens can go about as base analogs 
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2) substance mutagens can synthetically adjust base. 
Compound adjustment of bases changes their base-blending properties to such an extent that an altered purine will base-match with the wrong pyrimidine and the other way around. For instance, EMS is an alkylating operator that proselytes guanine to O6-methylguanine, which base-sets with T to make a GC to AT progress
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This is the repeating structural unit that forms RNA and DNA.
Gre4nikov [31]
I believe it is the nucleotides that make DNA and RNA.

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On the other hand, Our cardiovascular system - responsible for circulation of blood - is a closed system. Blood never leaves the veins, arteries, and capillaries.

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3 years ago
!!Pls help me!! Out of the circulatory system, respiratory system, muscular system, skeletal system, and nervous system, which b
Elenna [48]

Answer:

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Explanation:

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BigorU [14]

Answer: the prokaryotic cell

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