A protective function of the respiratory system would be
A. olfaction by drawing molecules into the nasal cavity.
B. producing ACE which helps regulate blood pressure.
C. altering blood pH by changing blood CO2 levels.
D. preventing microorganisms from entering the body.
Answer: D
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If you were to cut a cross section of the retina and examine it under a microscope, what would be the order of features from the choroid to the posterior cavity?
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What movements are allowed to some extent at the knee joint?
A. Flexion B. Dorsiflexion C. Extension D. Retraction E. Rotation
Normal placental progesterone synthesis can occur in pregnancies in which the fetal steroidogenic organs (adrenal cortex, testis, ovary) cannot efficiently make progesterone
This is due to the fact that placental progesterone synthesis is not dependent on: A. LDL receptor B. 3?-hydroxysteroid dehydrogenase C. CYP11A1 (side-chain cleavage) D. steroidogenic acute regulatory (StAR) protein E. cholesterol ester hydrolase