We inherit our behavior generically from our ancestors according to gallons study of twins
The answer out of those is defiently C!!! FYI you should probally stay away from anyone offering u any kind of drug! :)
Answer:
The answer is flexibility
Answer: In the air sacs
Explanation: Air sacs has a million tiny holes that is were oxygen transfers. Inside the air sacs oxygen moves across paper thin walls to tiny blood vessels called capillaries into your blood
The oxygen enters the bloodstream from the alveoli.
