Brent is a 22-year-old man who doesn't smoke. His RDA for vitamin C is 90 mg per day.

If he takes mg of vitamin C each day, he will consume megadose amounts of the vitamin. (Check all that apply.)

a.1000

b.100

c.200

d.50

e.900

a and e are correct

Explanation:

Data provided in the question:

Daily recommended intake of Vitamin C for Brent = 90 mg/day.

Now,

The upper limit for the intake of Vitamin C as recommended = 2000 mg/day.

Therefore,

If Brent is consuming 900 and 1000 mg of vitamin C per day, the Brent is

consuming megadose amounts of vitamin.

Hence,

900 mg and 1000 mg represent almost 9-10 times extra intake of

vitamin C. i.e a and e are correct

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.