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Question
Which of the following are considered more primitive based upon the structure of their limbs?a. bats
b. reptiles
c. porpoises
d. penguins
e. birds
Answer
This answer is hidden. It contains 1 characters.
Related questions
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A __________ is a term given to a macromolecule (large molecule) made up of individual subunits.
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b. behave the same chemically and physically but differ biologically from other isotopes.
c. are the same physically and biologically but differ from other isotopes chemically.
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e. are produced when atoms lose electrons.
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Which is the smallest unit of an element that retains the properties of the element?
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c. ion
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The ability of a solution to resist changes in pH depends on its ______________.