The first living cells were most likely ...
A. anaerobic, heterotrophic, prokaryotic.
B. anaerobic, chemotrophic, eukaryotic.
C. aerobic, photosynthetic, prokaryotic.
D. anaerobic, heterotrophic, eukaryotic.
E. aerobic, photosynthetic, eukaryotic.
Answer: A
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A. nauplius B. trochophore C. caterpillar D. nymph E. swimmeret
In the figure above, which lane shows a very large, linear DNA fragment that was cut by two
enzymes?
a. 1 b. 2 c. 3 d. 4 e. 5
A nerve cell returns to the resting potential as ______ ions leave the cell
a. sodium b. potassium c. calcium d. chloride e. ammonium
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Answer the following statement true (T) or false (F)