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Gnoma [55]
3 years ago
9

The respiratory zone is the only site of gas exchange within the lungs. the respiratory zone is the only site of gas exchange wi

thin the lungs.
a. True
b. False
Biology
1 answer:
34kurt3 years ago
4 0
I think its false because gas exchange can happen in blood also 
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It’s A

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Population A consists of 100 hens that are fully isogenic and that are reared in a uniform environment. The average weight of th
qaws [65]

Answer:

a. the environmental variance (VE) = 3.5 g ²

b. 17.5 g ² for population

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VT = VE + VG

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replacing data:

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H2 = VG / VT = 17.5 / 21.0 = 0.83

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control pest insects

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b

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