Which of the following were used in studies to test and support the hypothesis that high pressure forces phloem sap to flow?
a. radiolabelled sugars
b. radiolabelled hormones
c. aphids
d. vacuum chambers
Answer: c. aphids
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A relationship in which both members benefit is called
A. mutualism. B. commensalism. C. sympatric. D. parasitism. E. predation.
Which of the following is not a reason(s) that we see an increased rate of disease emergence?
A) climate change B) population crowding C) changes in sociocultural practices (such as injectable illicit drugs, widespread global travel, and increased food processing and handling) D) decreased water quality E) deforestation and urbanization
Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore it is a(n) ________ pathway.
A. exergonic B. endergonic C. oxidative D. reductive E. neither exergonic nor endergonic
The first aquatic vertebrates arose at approximately the same time as the plants on land.
Answer the following statement true (T) or false (F)