Which statement about mal-nutrition-induced night blindness is most accurate?
a) the impaired vision is caused by reduced cone function.
b) vitamin supplements can reverse degenerative changes.
c) the most common cause is vitamin d deficiency.
d) visual pigment content is reduced in cones more than rods.

C) vitamin supplements can reverse degenerative changes

Explanation:

Vitamin A is required for the formation of light-sensitive pigments in photoreceptors of the retina. Prolonged vitamin A deficiency causes a much-reduced level of rhodopsin resulting in night blindness. Also called nyctalopia, night blindness is an inability to see well at low light levels. Some of the rich sources of vitamin A are cod liver oil, milk, broccoli, eggs, etc. However, taking supplements and eating vitamin A rich food in the diet can reverse the condition.

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

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 : )