Rapid diffusion of oxygen and carbon dioxide through the air sacs (alveoli) of the lungs takes place through ________ epithelium.
A. simple squamous
B. simple columnar
C. keratinized stratified squamous
D. simple cuboidal
E. nonkeratinized stratified squamous
Answer: A
You might also like to view...
Kidney disease can cause hypertension by
A. stimulating the secretion of ANP. B. increasing release (excretion) of sodium and water. C. activating the renin-angiotensin mechanism. D. directly signaling the brain stem to increase blood pressure.
For a sprint lasting 60 seconds, ATP is supplied primarily by
A. aerobic respiration only. B. phosphate transfer and glycolysis. C. conversion of lactate to pyruvate. D. phosphate transfer only.
A surge in ____________________ secretion from the anterior pituitary triggers ovulation
Fill in the blank(s) with correct word
The chemical behavior of an atom is determined by the
A) number of protons. B) number of neutrons. C) outermost electron shell. D) size of the atom. E) mass of the nucleus.