Describe the components of the present-day marine ecosystem. What types of organisms
populate this ecosystem? Give specific examples. What will be an ideal response?
The student should discuss pelagic organisms, including plankton and nekton. Deeper species
are included in the epifauna and epiflora. Infauna includes organisms that live within the
sediment below the sediment-water interface. Specific examples include zooplankton, jellyfish,
fish, bivalves, and worms, among others.
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A sediment grain that bounces typically dislodges
A) one other sediment grain. B) two or three more sediment grains. C) ten more sediment grains. D) twenty more sediment grains.
Most cropping systems in the U.S. rely on corn because it is the crop with the highest value
Indicate whether the statement is true or false
The average slope of the continental shelf is similar to the slope of which of the following?
A) A beginners ski hill B) A large parking lot C) A soap box derby course D) An Olympic toboggan track E) The continental slope
In the northeastern United States, emissions of ____ are primarily responsible for acid precipitation
a. ?benzene b. ?sulfur dioxide c. ?carbon monoxide d. ?volatile organic compounds e. ?CFCs