In most women's menstrual cycles, ovulation occurs
A. at the onset of the flow.
B. halfway through the cycle.
C. just after sexual intercourse.
D. just following the last cycle.
B. halfway through the cycle.
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What are the problems with cloning as a conservation strategy? Check all that apply.
_____ It often requires finding appropriate surrogate mothers. _____ Populations of cloned individuals grow too quickly. _____ It requires detailed knowledge of species' reproductive biology. _____ It increases genetic diversity of a species beyond natural levels. _____ The root causes of species loss are not addressed by cloning methods.
Sickle cell anemia has been traced to what type of mutation?
a. frameshift b. transposable element c. deletion d. addition e. base substitution
If you were to consume too much vitamin C
what would happen?
a. It would be stored in your adipose tissue. b. It would be stored in your liver. c. You would metabolize it for energy. d. You would eliminate it in your urine. e. All of these would occur
Which of the following describes the mechanism by which a plant stem grows toward light?
A. The plant seeks light in order to maximize photosynthesis B. nerve like impulses stimulate contractile cells on the lighted side of the stem C. cells on the dark side of he stem elongate more than those on the lighted side D. THe plant grows into an open area where its leaves will not be shaded by competing plants E. the greater energy supply on the lighted side of the stem stimulates metabolism and growth on that side