Answer: B) an explanation of how evolution occurs
Explanation:
<span>Social drinkers refers to those people who drink alcohols occasionally and only in social settings. The blood alcohol content abbreviated BAC refers to the estimate of the concentration of alcohol in a drinker's blood. For most social drinkers, males usually take 5 or more drinks in a sitting while females takes about 4.</span>
Microscopic channels which traverse the cell walls of plant cells and some algal cells, enabling transport and communication between them
They all started to get digest.
Explanation:
Digestion starts in the mouth and all the way to the small intestine. And, there are many enzymes and digestive jucies which help to digest spefic nutriton amoung them.
If natural selection changes then the phenotypes within a population changes over time because natural selection acts on phenotypes instead of genotypes .