Answer:
<u>Inheriteted/Beneficial</u>
Explanation:
<em>First drop down</em>: "Sickle cell disease is passed on from parent to offspring."
<u>Inheriteted</u>
<em>Second drop down</em>
A increased resistance to a bad thing (malarial parasites) would be <u>Beneficial</u>
Carbon dioxide and oxygen cannot pass through but move in and out
The answer is C.... Hope this could help
_______________ reactions transfer energy to the surroundings, usually as heat.
C. Exothermic