At the time of ovulation, ____
a. the cervical mucus thins
b. the ovary stops making progesterone
c. LH levels are minimal
d. LH levels are minimal
e. progesterone levels are at their peak
ANSWER: a
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Which type of plant hormone is responsible for this effect?
a. brassinosteroids b. ethylene c. auxins d. oligosaccharins e. abscisic acid
Rickets is a nutritional disorder
a. that is most common among children 2 to 6 years old. b. caused by a lack of vitamin D. c. impairs a child’s ability to absorb calcium from the gut. d. encourages secretion of PTH. e. that does all of these
Guttation results from:a
water pressure. b. transpiration pull. c. osmotic pressure. d. root pressure. e. sink-to-source transport
How did the first life on Earth lead to the diversity of organisms on Earth today?
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