Question 17 - Test II Science Practice Test for the GACE

Hannah and Joe are discussing biotic vs abiotic factors in an ecosystem. Hannah says that bears can be considered abiotic factors since their droppings provide mineral components to fertilize the soil. Joe says that bears can be considered biotic factors because they are predators and contribute to regulating the fish population. Which two of the following are true?

A. Hannah is wrong
B. Joe is wrong
C. Hannah is correct
D. Joe is correct

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