Which of the following is NOT a part of the male human reproductive system?
A. seminiferous tubules
B. vas deferens
C. cervix
D. penis
C. cervix
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White wheat flour is made from the tissue within the wheat kernel that nourishes the developing wheat embryo. What is this tissue called?
A) endosperm B) embryo C) carpel D) stamen
Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z
If no other species can hybridize, then which of the following statements about species W and Y are true? I) Species W and Y have genomes that are still similar enough for successful meiosis to occur in hybrid flies. II) Species W and Y have more genetic similarity with each other than either did with the other two species. III) Species W and Y may fuse into a single species if their hybrids remain fertile over the course of many generations. A) Only I is correct. B) Only II is correct. C) Only III is correct. D) I, II, and III are correct.
Partial or complete loss of hearing (deafness) can be caused by damage to the _____
I) axons of the neurons associated with each hair cell that carry information to the brain II) hair cells (the sensory receptors) in the cochlea III) tympanic membrane, or eardrum A) only II B) only III C) only I and II D) I, II, and III
Historically, which of the following was instilled into the eyes of newborn infants to prevent gonococcal infections?
A. formaldehyde B. mercurochrome C. silver nitrate D. phenol E. triclosan