Half of the fibers of each optic nerve decussate at the ________.
A. superior colliculus
B. lateral geniculate nucleus of the thalamus
C. midbrain
D. optic chiasm
E. optic foramen
Answer: D
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In the fetal circulation, blood from the ________ flows directly into the descending aorta.
A. ligamentum arteriosum B. ductus arteriosus C. foramen ovale D. ductus venosus
As fluid moves out of the glomerular capillaries, it passes through gaps in the podocytes called slit 1) pores, whose size is regulated by what?
A) slit muscle B) slit diaphragm C) corpuscle D) fenestrations E) glomerular capillary
The physical process by which a single animal cell separates into two cells is called
A) meiosis. B) mitosis. C) cytokinesis. D) meiokinesis. E) mitokinesis.
If the fatty acid portion of a fat molecule has ten double covalent bonds, the fat is said to be
A. hydrogenated. B. polyunsaturated. C. monounsaturated. D. saturated. E. disaturated.