I think natural selection
Answer:Opium poppy. Essential for the pain killing cancer drug morphine, but infamous as the source of heroin and the addiction it causes.It drove the Anglo-Sino Opium Wars in the mid-1800s where opium addiction was promoted to gain commercial trading advantages.
Yam. ...
Tobacco. ...
Quinine. ...
Rice. ...
Rubber. ...
Cotton. ...
Cannabis.
Explanation:
Answer:
two choices
Explanation:
So "Dichotomous" means something is divied into two parts. That is why dichotomous keys always give two choices in each step.
hope this helps, have a great day!
:)
Answer:
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
Explanation:
