Dr. Moore is growing skin cells in a petri dish. When the cells get too large, they divide. When the cells detect that a space has become crowded, they signal each other to
A. move away
B. merge
C. stop dividing
D. disintegrated

PLS HELP

a: the sheep and waste material both release carbon into the atmosphere.

d

explanation:

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.