What advantage does the activity of osteoblasts and osteoclasts impart to vertebrates, even after growth has finished?
A) It permits additional increases in body size.
B) It allows for body size decreases when needed.
C) It enables bone to lengthen and shorten as needed.
D) It allows bone to get stronger as physical demands are placed on it.
Correct Answer:
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Q38: The binding site where calcium binds to
Q39: In skeletal and cardiac muscles, relaxation occurs
Q40: In cardiac muscle:
A)potassium is released from the
Q41: The hard, outer shell of vertebrate bone:
A)is
Q42: Osteoporosis is:
A)the loss of calcium from hard
Q44: Bone marrow is located in the:
A)cartilage.
B)spongy bone.
C)compact
Q45: Osteoporosis may occur when the activity of
Q46: Bones store:
A)magnesium.
B)amino acids.
C)glycogen.
D)phosphorus.
E)manganese.
Q47: If you break your leg, the bone
Q48: If you removed the calcium portion of
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