_______ are chemical messengers used between cells for communication.
A) Carbohydrates
B) Lipids
C) Receptors
D) Hormones
Correct Answer:
Verified
Q3: _ are tiny power plants contained within
Q4: _ epithelial cells are thin, flattened cells
Q5: In a process called _, receptors convert
Q6: In _, the cell moves materials from
Q7: A small membrane-enclosed structure that holds or
Q9: _ membranes line the body cavities that
Q10: The cell spends most of its life
Q11: Target cells _.
A) typically have receptors that
Q12: When blood cells are placed in a
Q13: The diffusion of water molecules through a
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