Trace elements
A.
include zinc, copper, and manganese.
B. are required in large amounts.
C. may be needed for enzyme function.
D. are involved in maintaining pH in the cell.
E.
include zinc, copper, and manganese AND may be needed for enzyme function.
E
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Fill in the blank(s) with the appropriate word(s).
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Fill in the blank(s) with the appropriate word(s).
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a. 4 b. 2 c. 38 d. 36 e. 34
Which are characteristics that distinguish mammals from other vertebrates? Check all that apply.
_____ hair _____ endothermy _____ specialized teeth _____ enlarged skull _____ mammary glands