When tobacco plants are damaged by herbivorous caterpillars, they release chemicals called jasmonates into the air that ________
a. signal nearby plants to synthesize bitter alkaloids
b. kill the caterpillars over a period of several hours
c. attract parasitic wasps that lay eggs in caterpillars
d. appear to cause a decrease in the appetite of the caterpillars
c
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Which of the following strategies of sexual reproduction will result in the most genetic diversity?
A. Sexual reproduction of homothallic species B. Sexual reproduction of heterothallic species C. Sexual reproduction via arthroconidia D. Sexual reproduction via sporangiospores
When plants bend toward or away from a light source, what is this called and which type of light causes the response?
a. phytochromism, far red light b. photoperiodism, red light c. phototropism, blue light d. photosynthism, both red and blue light
From an evolutionary standpoint, why is it important to have more bitter-sensing taste buds than any
other type? a. there are more bitter-tasting foods than any other in nature b. more people prefer bitter-tasting foods c. many poisons have a bitter taste so only tiny amounts are needed to allow sensing to take place d. bitter taste is associated with mating selection e. to prevent over-consumption of sugary foods
Lipid synthesis occurs in which eukaryotic organelle?
What will be an ideal response?