The smallest working units in biological classificatory systems that are reproductively isolated populations or groups of populations capable of interbreeding to produce fertile offspring are called:
a. genus.
b. genes.
c. species.
d. genome.
e. genetic code.
ANSWER: c
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A system of communication using sounds, gestures, or marks that are put together in meaningful ways according to a set of share rules is called a(n):
a. signal set. b. language. c. code. d. linguistic system. e. analogue.
The phrase "once upon a time" is a __________ of English tales
a. cliché b. stylistic feature c. narrative event d. proverbial device
The analysis of the Herto remains indicate they are
a. most similar to Australopithecus. b. indistinguishable from modern Homo sapiens. c. most similar to late Homo erectus from China. d. Near-modern and titled Homo sapiens idaltu. e. Hybrid Neandertal and Sapiens
Which of the following is not typical of multi-male polygyny?
a. multi-male groups b. intense competition for estrus females c. a dominance hierarchy d. small canine size