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Directions:Read carefully and write the letter of your
answer.
1. Most of the food for the aquatic ecosystem is
produced by
A. worm B. phytoplankton C. fish D. shellfish
2.What kind of system formed by the interaction of a
community of organisms with their environment
A. ecosystem
B. intertidal zone
C. estuaries D. marine animals
3. What type of consumer feeds directly on a producer?
A. carnivore
B. second-order consumer
C. first-order consumer D. Third-order consumer
4. The primary difference between a food chain and a
food web is that
A. a food web shows how energy is used
B. a food web is a complex system of food chain
C. a food chain shows how energy is stored
D. a food chain is a complex system of food chains
5. It is an ecosystem where the ocean floor is covered
and uncovered as the tide goes in and out.
A. terrestrial zoo B. habitat
C. estuaries
D. intertidal zone​


Sagot :

Answer:

b

Explanation:

it is a food complex system