What force(s) move(s) carbon dioxide from the blood into the alveoli?
What will be an ideal response?
Carbon dioxide moves into the alveoli as a result of the pressure gradient.
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Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not.
Answer the following statement true (T) or false (F)
Label T represents the
A) right pulmonary veins. B) pulmonary trunk. C) right pulmonary arteries. D) superior vena cava. E) inferior vena cava.
Complement proteins
A. are hormones found in the blood. B. do not attract neutrophils, monocytes, macrophages, or eosinophils. C. are on the surface of macrophages. D. can form holes in the plasma membrane of target cells. E. may cause the release of interferon.
The penis contains ________ columns of erectile tissue that become functional when blood vessels ________.
A. 3; constrict B. 2; constrict C. 3; dilate D. 2; dilate