The first organisms
a. absorbed their food supplies from the organic molecules that surrounded them.
b. were eukaryotes.
c. utilized fermentation for energy production.
d. utilized ATP.
e. did all of these except they were NOT eukaryotes.
Answer: e. did all of these except they were NOT eukaryotes.
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Four of the five answers listed below are
produced by the same germ layer. Select the EXCEPTION.
a. nervous system b. muscle system c. circulatory system d. reproductive system e. excretory system
Ants, termites, and some other insects as well as naked mole-rats are __________ and thus include
sterile workers who care for the reproducing members of the group. Fill in the blank(s) with the appropriate word(s).
Not much physical evidence of life is available from rocks of the Precambrian because these ancientrocks:a
have been greatly eroded in most areas. b. have been deeply buried in most areas. c. have been deposited in oceanic trenches deep in the oceans. d. occupy inaccessible areas of mountainous regions. e. occupy the polar regions and are thus covered by glaciers
Energy derives from the sun and is channeled throughout the biosphere through the mechanisms of ______
Fill in the blank(s) with correct word