The best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
In a living thing, both tissue and organs are very important to maintaining homeostasis.
Answer:
No, a person's genotype cannot be determined solely by their phenotype as many genes in our genome do not get expressed.
Explanation:
Eat It because it tastes really really good
SOS:
The answer is <em><u>gametes!</u></em>
<em>Hope this helps!</em>
