Movement in earthworms involves all the following
EXCEPT
a. a hydrostatic skeleton.
b. fluid-filled coelomic chambers.
c. rigid skeletal elements.
d. segments changing shape
e. hydraulic pressure.
Answer: c
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All cells convert the potential energy found in food molecules into ATP through:
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A. Weakened immune response B. DNA methylation of a nerve growth factor gene C. Hormonal changes D. Seasonal changes E. Exposure to blue light