What are the tympanum and stapes in tetrapods used for?
a. smelling
b. heat sensing
c. tasting
d. hearing
Ans: d. hearing
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Why is it important to have a slow block to polyspermy?
A. The fast block doesn't work well. B. The slow block creates a permanent barrier. C. The fast block is actually slower than the slow block. D. It prohibits the acrosomal reaction. E. All of the choices are correct.
Artificial selection and hybridization can demonstrate the __________ basis of behavior.
A. cognitive B. operant C. genetic D. associational E. endogenous
What occurs during stage 3 of labor?
A. The amniotic sac ruptures. B. The cervix dilates. C. Effacement occurs. D. The placenta is expelled. E. The baby is born.
Which of the following is a high-resolution light microscope technique for detecting interactions between proteins?
a. FRAP (fluorescence recovery after photobleaching) b. FRET (fluorescence resonance energy transfer) c. MPEM (multi-photon excitation microscopy) d. TIRF (total internal reflection)