An explanation for a biological process that is substantiated by a large body of evidence is called a
A. hypothesis.
B. theory.
C. systems biology.
D. reductionism.
E. prediction.
Answer: B
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The human appendix is the equivalent of which of the following structures?
A. the cecum B. the abomasum C. the omasum D. the rumen E. the reticulum
Condensation of DNA yields the 30 nm filament. This filament:
A. is the most compact form of eukaryotic DNA. B. is moderately condensed DNA, as facilitated by H1 and the N-terminal tails. C. is also called the chromosomal scaffold. D. includes tetranucleosomes, each 30 nm in diameter. E. would not include histone variants.
IQ is calculated by dividing the individual's ____________________ age by his or her ____________________ age and multiplying the quotient by 100
Fill in the blank(s) with correct word
A neuron at rest has a charge difference across its cell membrane, with the interior of the cell negative relative to the exterior. This difference in charge across the plasma membrane is referred to as ________ potential
A) action B) resting C) graded D) refractory E) depolarization