Who am I? I am a lipid-derived hormone produced in response to the presence of insect pests
a. cytokinin
b. abscisic acid
c. jasmonic acid
d. gibberellin
e. auxin
C
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The causative agent of cholera in humans is a member of the genus ________.
A. Vibrio B. Escherichia C. Shigella D. Enterobacter
The ___ Echinoderm lineage is made up of sea urchins and sand dollars, whose ossicles are fused into solid tests that
restrict flexibility but provide excellent protection.
a. Echinoidea b. Ophiuroidea c. Crinoidea d. Holothuroidea e. Asteroidea
What is the role of the lysosome in intracellular digestion?
a. absorption b. enzymatic digestion c. filtration d. mechanical digestion e. energy production
Which of the following events would NOT be expected to occur during a strong El Niño year?
a. heavy rains in the central and eastern Pacific ocean b. upwelling of cold water along the west coast of the Americas c. death of phytoplankton in western coastal areas d. warm surface currents flowing from west to east e. weakened equatorial winds