A) (2) and (3)
B) (3) and (4)
C) (1) and (4)
D) (1) and (2)
Correct Answer: D
Solution :
Both lion (carnivore) and sparrow (herbivore) are consumers. The Asteroidea occupy several important roles throughout ecology and biology. Sea stars, such as Ochre star (Pisoster ochraceus) have became widely known as the example of the keystone species concept in ecology. Most species are generalist predators, eating molluscs such as clams, oysters, etc.
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