__________ is a process where a concentration of nerves and sensory structures forms in the head region. Fill in the blank(s) with the appropriate word(s)
ANSWER: Cephalization
Biology & Microbiology
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A flower on a plant represents which level of organization?
A. atom B. cell C. organ D. organism E. population
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Of the following mammals, you would expect the _____ to have hemoglobin with the lowest affinity for oxygen.
A. mouse B. wolf C. human D. horse E. elephant
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Does either of the insulin chains contain beta sheets?
a. yes b. no
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What structures allow water to move laterally and vertically through xylem cells?
a. sieve elements b. companion cells c. sclereids in the cell walls d. pits in the cell walls e. perforated sieve plates
Biology & Microbiology