Which of the following best explains why the diversity of organisms decreases as you move from shallow seas to deep oceans? The levels of oxygen in the deep ocean are too high for many organisms to thrive.
The low temperatures of the deep ocean would freeze most organisms.
The salinity of the deep ocean is too high for most organisms to live.
The lack of sunlight in the deep ocean limits the types of organisms that can survive.

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 : )

you know they are heterozygous for a trait because they have it as jj or jj.

b is the answer and if you need further with anything message me

a metamorphic rock would be formed.