Assuming resting conditions at sea level, what is the partial pressure of carbon dioxide in systemic arteries?
A) 80mmHg
B) 100mmHg
C) 40 mm Hg
D) 46 mm Hg
E) 160 mm Hg
Answer: C) 40 mm Hg
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When someone has cataracts, they may be able to have a surgical replacement of their cloudy lens with an artificial lens. The artificial lens implant will be clear, but it is also fixed in shape. Based on your knowledge of vision, would it usually be necessary to get a new prescription for their glasses following this surgery?
A. Yes, the artificial lens will be fixed, so it cannot give distance vision one moment and near vision the next. B. No, they would no longer need glasses after lens replacement surgery because a new lens would not need correction.
The lineage ____ are the fleshy-finned fishes, with fins supported by muscles and an internal bony
skeleton. Based on the fossil record, tetrapods apparently arose from this group.
a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii
Genetic testing by ____ can be performed earliest in pregnancy
a. amniocentesis
b. obstetric sonography c. fetoscopy d. chorionic villus sampling e. preimplantation genetic diagnosis
The diastolic pressure for a normal young adult would be under
a. 60 mm Hg. b. 80 mm Hg. c. 100 mm Hg. d. 120 mm Hg. e. 140 mm Hg.