Humans are an example of
A) chemoautotrophs.
B) photoautotrophs.
C) chemoheterotrophs.
D) photoheterotrophs.
Answer: C
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Bacterial and eukaryotic replication have many similarities. Which of the following is not a true comparison?
A. Both form loops with the lagging strand template to accommodate the antiparallel nature of DNA. B. Both incorporate a sliding clamp mechanism in their replication polymerase. C. Both the primase of bacteria and Pol ? of eukaryotes are responsible for primer synthesis and only incorporate ribonucleotides. D. Eukaryotic replication rates are slower than bacterial rates. E. The Okazaki fragments generated in eukaryotes are shorter than those in bacteria.
Which type of neuron is found only in the brain and spinal cord?
A) sensory neuron B) interneuron C) motor neuron D) glial cell
In humans, germ cells are located in
a)bone marrow. b)blood. c)all cells. d)all tissues. e)testes and ovaries.
When a cell uses chemical energy to perform work, it uses the energy released from a(n) ________ reaction to drive a(n) ________ reaction
A) exergonic; endergonic B) endergonic; exergonic C) exergonic; spontaneous D) spontaneous; exergonic