Assume that the left ventricle of a child's heart has an EDV=90mL, and ESV=60mL, and a cardiac output of 2,400 mL/min. His SV is ________ mL/beat, and his HR is ________ bpm.

A) 30; 80
B) 40; 60
C) 80; 30
D) 150; 16
E) 16; 150

You are studying speciation in crickets. You find that males and females from different populations will mate, but few eggs get fertilized. This is an example of what type of reproductive isolating barrier?

A) pre-mating
B) post-mating, prezygotic
C) intrinsic postzygotic
D) extrinsic postzygotic

The optic nerves extend posteriorly and medially from the eyes, and merge at the

A) optic chiasma.
B) infundibulum.
C) corpus callosum.
D) fornix.
E) cerebral peduncle.

Where does the citric acid cycle take place in a eukaryotic cell?

A) Nucleus
B) Cytosol
C) Mitochondrial matrix
D) Endoplasmic reticulum
E) Mitochondrial membrane