Which of these is a biotic factor of an ecosystem?
A.
the temperature of water in a stream
B.
the bacteria that live in the intestine of a rabbit
C.
the amount of water vapor present in a rain forest
D.
the rocks that provide cover for a rattlesnake
A.
the temperature of water in a stream
B.
the bacteria that live in the intestine of a rabbit
C.
the amount of water vapor present in a rain forest
D.
the rocks that provide cover for a rattlesnake