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

A. The bacteria living inside the intestines of a rabbit. Biotic creature are things that are living, breathing, and need food/water to live. Hope my answer was useful. 

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11

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