Which of the following is not a function of a stem?
positioning The leaves for photosynthesis
supporting the overall shape of the plant
water and mineral absorption
vertical growth
water and mineral absorption
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Both malaria and yellow fever are transmitted by mosquitoes
Indicate whether this statement is TRUE or FALSE.
According to research done by Baron and Prado, how do prions move within the CNS?
a. They use receptors on the surfaces of nerve cells. b. They use vesicles found inside the nerve cells. c. They use tunneling nanotubes. d. They pinch off the nerve cell membrane. e. They stick to the outer surfaces of nerve cells.
The light-independent reactions of photosynthesis
a. fix carbon dioxide. b. release oxygen. c. cannot occur in light. d. generate ATP. e. do all of these.
During DNA sequencing, a laser beam scans the fragments on the electrophoresis gel to identify the
____________________. a. gene sequence by the color it fluoresces b. end nucleotide by the color it fluoresces c. useful DNA strands that will be analyzed further d. gene products that have been fixed by the gel e. gene products that have been sorted by the addition of a probe