Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consist of two types of cells. some of these cells develop into all of the cells of a growing fetus. what do the other cells develop into?
a. the umbilical cord
b. the placenta
c. the embryo
d. the fetus

b for the points, credit to the guy above he comments

Explanation:

POINTS :D

the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

i would say it is