Most of the animals alive today are
A) vertebrates.
B) invertebrates.
C) choanoflagellates.
D) really colonies of protist cells.
Answer: B
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Which of the following pairs of career descriptions and work tasks is not correctly matched?
A. Medical microbiologist -- identify the cause of a bladder infection at a hospital lab B. Industrial microbiologist -- manipulate bacterial strains to be less pathogenic C. Public health microbiologist -- track the incidence of AIDS in a population D. Agricultural microbiologist -- identify bacterial causes of crop disease
Which brain region is associated with language in humans?
A. occipital lobe B. parietal lobe C. frontal lobe D. temporal lobe
Geographic isolates of a particular species that differ from other populations by one or more characteristics are considered to be
A) clines. B) subspecies. C) evolutionary "dead ends." D) ecotypes.
With incomplete dominance, a likely ratio resulting from a monohybrid cross would be ________
A) 1:2 B) 1:2:2:4 C) 9:3:3:1 D) 1:2:1 E) 3:1