Agroup of college students working on a project on bio-gas have found some bacteria in the bio-gas plant. these bacteria can utilize methane as their source of energy and do not need oxygen for their survival. what kind of bacteria could they be?

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

What is the name for a substance formed in a chemical reaction