Which activity would be an example of an ecological study?
A) measuring monthly ocean temperature changes
B) developing a medication to treat kidney failure in cats
C) comparing the effects of varying water temperature on fish egg development
D) calculating the age of a giant redwood tree by counting its annual rings
C
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In the figure above, this group of plants was given treatment IV
a. 1 b. 2 c. 3 d. 4 e. 5
Which of the following arose before all of the others listed here?
a. crocodiles b. lizards c. turtles d. snakes
It has been observed that viral particles often revert (back mutate to non-AZT-resistant populations when treatment with AZT is discontinued. What is the most likely reason for this observation?
What will be an ideal response?
Plants that carry out the Calvin cycle during the day when the stomata are closed and fix carbon dioxide into organic acids at night when the stomata are open are called:
a) green algae. b) C3 plants. c) C6 plants. d) CAM plants. e) chemoautotrophs.