★ Endocrine System Quiz
Cells that have receptors for a particular hormone.
A. gland cells
B. neurons
C. hormones
D. target cells
Select your answer:

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Movement and Locomotion › Viewwhen the circular muscle contract, the longitudinal muscle relax, the earthworm become
A. shorter and thinner
B. shorter and thicker
C. longer and thinner
D. longer and thicker
Vitamins › View
Which if the following foods are rich in Vitamin A?
A. milk fortified with vitamin A
B. liver
C. orange fruits and vegetables (like cantaloupe, carrots, sweet potatoes)
D. all of the above