4. A protein shake company is testing their new protein shake on college football players. They hypothesize that the shake will increase muscle mass by 25% in 60 days. What is
the independent variable?
a. Muscle mass
C. diet
b. Time
d. protein shake

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 : )

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

the growth of the plants is affected by the heat of the light. what is the student doing?