In the lungs, oxygen moves from air into blood by
A) diffusion.
B) bulk flow.
C) facilitated diffusion.
D) active transport.
E) osmosis.
A
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Which of the following statements about the differences between exoskeletons and endoskeletons is correct?
A. An exoskeleton lies external to the body's soft tissues, whereas an endoskeleton lies internal to most of the body's soft tissues. B. Exoskeletons can be repaired easily following damage, whereas endoskeletons are more difficult to repair. C. An exoskeleton grows with an animal, whereas an endoskeleton does not. D. An exoskeleton provides protection for internal organs, whereas an endoskeleton does not. E. All of the answer options are correct
Hydrophobic molecules are ____ water
a. attracted by b. absorbed by c. repelled by d. mixed with e. polarized by
Which of the following contains the testes?
a) epididymis b) Mesentery b) prostate d) scrotum
Which of the following statements regarding the surface of the skin is false?
A. It has sebum as a coating. B. It has normal microbiota. C. It has goblet cells. D. It is salty. E. It is acidic.