The cuticle in plants helps in preventing:a
dessication.
b. transpiration.
c. diffusion of gases.
d. translocation of food.
e. translocation of minerals.
A
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Pheromones are generally detected by the vomeronasal organ in most mammals, reptiles, and amphibians. (True)
A. true B. false
In 1908, chemist Kikunae Ikeda identified a new taste modality he called "umami", or "delicious" in Japanese. It gives a savory flavor to meat, seaweed, and tomatoes. What molecule is responsible for umami?
A. Na+ ions B. H+ ions C. glutamate D. Mg+2 ions E. Fe+2 ions
Which kind of T cell is most important in the removal of virally-infected cells from the body?
A. helper T cells B. memory T cells C. cytotoxic T cells D. suppressor T cells
Select all correct descriptions of the limbic system.
A. contains the amygdala and hippocampus B. integrates our emotions with our higher mental functions C. contains a number of reflex centers D. accounts for why eating and sexual behavior seem pleasurable