____ can dominate the zooplankton community of temperate waters
a. Copepods
b. Amphipods
c. Barnacles
d. Shrimp
e. Heteropods
A
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Finally, you take a tree and block the ants from the canopy. Then you spend three years counting the number and types of insects on the forest floor around this tree (tree A) and in the area around a tree in which ants are not blocked (tree B)
You find that the area around tree A has 25% fewer ants and 40% more beetles than the area around tree B. These data support the hypothesis that: A. there is no relationship between ant abundance and beetle abundance. B. there is a positive relationship between ant abundance and beetle abundance. C. there is a negative relationship between ant abundance and beetle abundance. D. ecological interactions in the tree canopy have no effect on forest floor communities. E. ecological interactions in the tree canopy always have a negative effect on forest floor communities.
Which is not an adaptation of the gymnosperms?
A. Cones B. Flowers C. Pollen D. Seeds
Which of the following is NOT true
concerning endometriosis?
a. tissues that line the uterus grow in other places in the pelvis b. oviducts become scarred c. pregnancies are otherwise normal d. intercourse is painful e. all of these are NOT true concerning endometriosis
In the carbon cycle, ______ from the atmosphere is used in photosynthesis to synthesize carbon-containing organic molecules in a process called ______.
A. carbon dioxide; combustion B. carbon dioxide; carbon fixation C. hydrocarbons; oxidation D. hydrocarbons; cellular respiration