The “pulse” we feel in our wrists and ankles is associated with blood flow through ____
a. arteries
b. arterioles
c. capillaries
d. venules
e. veins
ANSWER: a
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What benefits do plant-eating animals receive from the bacteria that live in their guts?
What will be an ideal response?
In the accompanying diagram, F represents the ____
a. stomach b. liver c. pancreas d. gallbladder e. small intestine
Four of the five characteristics listed below are those
of an unchanging, nonevolving population. Select the exception. a. random mating b. no mutation c. differential survival d. no migration or gene flow e. infinitely large population
Evolution by natural selection ________
A) requires that multiple unverified assumptions are made before it can be considered a viable explanation B) is only a theory and therefore not testable C) can be tested experimentally D) can be tested observationally E) Both C and D.