When comparing the solute concentration of two solutions, the ________ solution has a lower solute concentration
A) hypertonic
B) hypotonic
C) isotonic
D) solvent
B
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Skin cancer is the _______ type of cancer, and due to sun exposure it occurs most frequently on the __________
A. most common; head and neck B. third most common; head and neck C. most common; hands and ears D. third most common; hands and ears
The partial pressure gradient for oxygen (in the body) is much steeper than that for carbon dioxide. Explain how equal amounts of these two gases can be exchanged (in a given time interval) in the lungs and at the tissues.
What will be an ideal response?
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.
A ________ plane would divide the eyes from the back of the head.
A. sagittal B. frontal C. transverse D. midsagittal