A poisonous snake of North America is the Rattlesnake... I'm not sure if it's one of only 2, but it is one.
Answer:
the thing is there is something called a punnet square 2 of each heredity from your parents and the thing is that your traits come at random not 1, 2, 3, 4
Explanation:
I believe that it is 2. LSD binds with serotonin receptors so 1 is out. LSD is actually both a stimulant and a depressant so 3 is our. Honestly I don’t really know what it means by perpetual changes because literally every drug will cause perpetual change.
I think the answer would be c
