Natural selection? I'm not sure
The answer is C: Tt and tt.
If this is for the scientific process unit, the answer is passing laws to prevent certain types of scientific research. I know because I had this question in biology.
Answer:
1:the spiders venom.
2:no a mutation is a physical change
3:yes
planation:
Hello There :D
Answer: <span>B. hypothalamus
</span>
Reason: <span>The </span>part of the brain<span> which </span>controls hunger<span> is the Hypothalamus. </span><span> The hormones produced here control</span><span> temperature, thirst, </span>hunger, sleep, mood.
I hope I helped
-Chris