Organisms are dependent on each other for the energy they need to survive.
what would occur if the snake population is removed from the ecosystem pictured above?
a) the hawk population increases
b) the mouse population increases
c) the leaf population increases
d) the mouse population is not affected

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 : )