D : the number of generations in one population
Long eyelashes that doesnt allow the sand to get into its eyes
And its ability to store water for long periods of time in its hump
The smart answer is A because it makes more sense
C is the answer
Mescaline is considered a hallucinogen.
PCP is also considered a hallucinogen
I'm thinking the brain. The brain produces hormones and chemicals that tell the body to grow. And you also need to think a lot when trying to survive, which is when the brain comes in handy.