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

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.