Which of the following accompanies puberty?
A) male climacteric, or andropause B) menarche
C) female climacteric, or menopause D) atresia
Answer: B
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Why does our blood pressure generally go up as we age?
A. Our veins get 'hard' and absorb less systolic force B. Our veins get 'hard' and absorb less diastolic force C. Our arteries get 'hard' and absorb less systolic force D. Our arteries get 'hard' and absorb less diastolic force
The secondary oocyte completes the second meiotic division when
A. the mature follicle ruptures. B. it is penetrated by a sperm cell. C. it receives both estrogen and progesterone. D. ovulation occurs. E. it is implanted in the uterus.
How does a chemical catalyst increase the rate of a reaction?
A. by acting as one of the reactant molecules B. by decreasing the energy of activation C. by increasing the energy content of the product molecules D. by increasing the temperature of a solution E. by phosphorylating a reactant
Arrange the following in the sequence in which they form in the embryo. (1) neural plate (2) neural tube (3) notochord (4) primitive streak
A. 1, 2, 3, 4 B. 1, 3, 2, 4 C. 4, 3, 1, 2 D. 4, 1, 3, 2 E. 3, 4, 1, 2