Which of the following activities has the greatest effect on bone remodeling and bone deposition?
a) walking
b) sleeping
c) running.
d) jumping.
e) both c and d
e
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The process of cell division that divides the cytoplasm of the zygote among blastomeres is called
A) cleavage. B) implantation. C) placentation. D) embryogenesis. E) blastulation.
Which of the following activities would fatigue your hand muscles the fastest?
A) Throwing a ball in the air and catching it as many times as you can B) Bouncing a ball on the floor as many times as you can C) Squeezing a ball as hard as you can without stopping D) Alternately squeezing a ball then relaxing
Which statement is true regarding action potential propagation?
A) In salutatory conduction, the myelin is composed of fat, which insulates the axon membrane against sodium ion flow across the membrane. B) Continuous propagation results in one graded potential producing multiple action potentials. C) The action potential will die out along the axon if another graded potential does not occur. D) All voltage-gated channels along the axon open at the same time, allowing sodium to flow in simultaneously. E) The active transport of sodium and potassium through sodium-potassium ion pumps causes depolarization of the axon membrane.
Which cranial nerves are responsible for all aspects of eye function?
A) II, III, IV, V, VI B) V, VII, VIII C) I, II, VII D) IX, XI, XII E) None of the answers are correct.