Which scientist proposed that cells come from other cells?
a. hooke
b. van leeuwenhoek
c. schwann
d. virchow

c. Schwann

Explanation:

By the late 1830s zoologist Theodor Schwann along with botanists Matthias Schleiden proposed the cell theory. The cell theory states that all living cells comes from the pre-existing cells, the cell is the basis unit of life and all living beings are made up of cells. This theory describes the basis property of all the cells.       

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in