Lipids
A. contain C, H, and O, but with proportionately less oxygen than in carbohydrates.
B. include phospholipids, cholesterol, and fats.
C. are insoluble in water.
D. All of the answer choices are correct.
Answer: D
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A major difference between oogenesis and spermatogenesis is that each cycle of oogenesis results in
A. three viable polar bodies, whereas a single cycle of spermatogenesis produces no polar bodies. B. a tiny viable egg, whereas a single cycle of spermatogenesis produces four sperm, each much larger than the egg. C. four viable eggs, whereas a single cycle of spermatogenesis produces only one sperm. D. only one viable egg, whereas a single cycle of spermatogenesis produces four spermatozoa. E. three viable eggs, whereas a single cycle of spermatogenesis produces only one sperm.
When the palatine processes of the maxillary bones do not fuse properly, resulting in an opening between the oral and nasal cavities, the condition is known as
A. cleft chin. B. deviated septum. C. cleft lip. D. cleft palate. E. clogged sinus.
Large-diameter, densely packed myofibrils, large glycogen reserves, and few mitochondria are characteristics of
A) slow fibers. B) intermediate fibers. C) fast fibers. D) red muscles. E) fatty muscles.
Hormones that act on the same target cells yet have opposite effects are said to be:
A) synergists. B) antagonists. C) neurohormones. D) hydrophilic hormones.