Which of the following has the highest half life?

a) MIT
b) DIT
c) T3
d) rT3
e) T4


Ans: e) T4

Biology & Microbiology

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In Lives and Opinions of the Eminent Philosophers, Diogenes recounts how Plato’s Academy amended his definition of a human—“a featherless biped” to include “with broad, flat nails”—after Diogenes brought him a plucked chicken. Clearly, none of these philosophers were being entirely serious, but this exchange highlights a difficulty with phylogenies based entirely upon phenotypes. Which of these definitions would have prevented Diogenes from presenting another animal to Plato and declaring it a man?

a. “a hairy biped with stereoscopic vision” b. “a featherless biped with fingers and a nose” c. “a biped with an upright posture and fully opposable thumbs” d. “a biped that talks and uses tools”

Biology & Microbiology

The interaction of sympathetic and parasympathetic

systems is best described as a. antagonistic. b. cooperative. c. overriding. d. synergistic. e. ineffective.

Biology & Microbiology

Some of the drugs used in chemotherapy work by

A. inhibiting cytokinesis. B. producing kinases. C. preventing spindle formation. D. increasing telomeres. E. causing cells to divide quickly.

Biology & Microbiology

What do echinoderms and chordates have in common?

A. Protostome development B. Endoskeletons C. Ecdysis D. Dorsal nerve cords

Biology & Microbiology