Answer:
B.Lubricating cartilage at joints
Answer:
Mendel was interested in the offspring of two different parent plants, so he had to prevent self-pollination. ... Then he pollinated them by hand with pollen from other parent plants of his choice. When pollen from one plant fertilizes another plant of the same species, it is called cross-pollination.
Explanation:
Discovery, research, and interviewing
Hypothesis as the statement is not supported by any facts and is therefor classified as a guess to a future investigation
