I believe that C would be the best answer to this question.
I really hope that this helps you out
The factors that most directly affect blood flow are blood pressure, blood volume, resistance and activity level.
true
Answer:
"Phenotype" would mean the two letter combination of traits that make up this trait. For example, heterozygous would be something like "Cc", with the "C" representing a dominant trait and "b" representing a recessive trait.
In this case, the answer would look something like "CC", though I'm not sure the exact letters this question is using. Good luck!
Answer - D. Prokaryotes are only single-celled.
Reasoning - Reason why they are single-celled are unicellular is because they do not have a bound nucleus membrane.