13) The bacteria that cause tetanus can survive in a puncture wound that has healed on the outer
surface of the skin in an environment without oxygen present. Through what process do these
bacteria acquire the energy they need to survive?
A)
Aerobic respiration
B)
Anaerobic respiration
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C)
Photosynthesis
D)
Homeostasis

B)

Anaerobic respiration

Explanation:

All living organisms require energy for survival. They obtain this energy via the process of cellular respiration, where they breakdown the energy in their ingested food. However, the process of cellular respiration can either be aerobic (with oxygen) or anaerobic (without oxygen).

Anaerobic respiration is carried out by organisms who do not require OXYGEN for the process. This is the case of the bacteria described in this question which survive in a puncture wound that has healed on the outer surface of the skin in an environment without oxygen present. The type of respiration carried out by this bacteria is ANAEROBIC RESPIRATION.