Which of the following secretes a hormone that
causes its own secretory cells to respond?
a. small intestine
b. pancreas
c. large intestine
d. stomach
e. liver
Answer: d
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Which of the following is the best definition of
sympatric speciation? a. species that evolve due to geographical distance b. mechanical isolation acts to prevent speciation c. breeding behavior that prevents the organisms from breeding due to differences in their breeding time d. ecological isolation e. evolutionary change that creates two species occupying the same space
The form of natural selection that leads to an increase in the frequency of alleles which promote the fitness of genetic relatives is called ________
A) direct selection B) indirect selection C) inclusive selection D) kin selection
In the years after the completion of the human genome project, genome sequencing revealed surprisingly little amount
of variation in the sequence and arrangement of nucleotides in humans. a. True b. False
You start to trip, but you keep your balance and don't fall. Which of the following brain regions is responsible for the rapid coordination of muscle activity that kept you from falling?
A) cerebral cortex B) thalamus C) cerebellum D) cerebrum