What is NOT true about the human large intestine?
A. It contains three relatively straight segments with no villi.
B. It compacts and stores undigested materials until their excretion as feces.
C. Sodium, vitamin K and other bacterial metabolic products are absorbed across its wall.
D. It is longer than the small intestine.
E. About 4% of fluid absorption takes place in it.
D. It is longer than the small intestine.
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_____ refers to a system in which individuals select their mates according to phenotype
A. Assortative mating B. Random mating C. Differential mating D. Sexual selection E. All of these
All of the following features are true of Anthropoids except
A. they include monkeys, apes, and humans. B. almost all were diurnal. C. opposable thumbs. D. living in groups with complex social interactions. E. changes to eye design and increase in brain size.
Air is continuously forced through tubes that
thread through vascularized tissue in a pair of inelastic lungs in a. some fish. b. amphibians. c. birds. d. reptiles. e. some small mammals
The kidneys function to rid the body of
a. excess water. b. excess solutes. c. toxins and drugs. d. metabolic wastes. e. all of these