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shtirl [24]
4 years ago
8

The nervous system is the body’s switchboard, sending signals between different parts of the body. The central hub of the nervou

s system is the brain. The brain is an example of which level of hieratical organization within the body?
a cell
b tissue
c organ
d organsystem
Biology
1 answer:
larisa86 [58]4 years ago
4 0
The answer to this question is D
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