Answer: Option B.
Explanation:
The first experiment of the passage shows that treatment with TGFBR1 and TGFBR2 antagonists led to lower levels of epithelial cell production. For this conclusion to be strongly valid, we want to show a positive correlation between TGFBR activity and epithelial proliferation.
D. Weather refers to short-term conditions, whereas climate refers to long-term conditions. hope this helps!
DNA is the molecule that contains the genetic information that is transmitted hereditary and controls the cellular functioning
A) weapons for an evolutionary arms race w/ disease causing organisms
In meiosis, the chromosome pairs do the crossing over where there is an exchange of genetic material between them and because of it the
chromatids held together by the centromere are no longer the same.