Before a chemical reaction can start energy must be absorbed by the reactants. The amount that must be absorbed to start the reaction is called the activation energy. you're right, t<span>he activation energy must be reached.</span>
Answer: it is capable of fixing the atmospheres nitrogen through the soil
Explanation:
The Troposphere is the first layer above the surface and contains half of the earths atmosphere
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The answer would be C. studying chromosomal changes in mitosis cell division. because mitosis is when the parent cells are just copies of an identical cell or known as the daughter cell.
<u>Answer</u>: operator
Operons are the functioning units of a gene within a certain DNA segment. The operator within an operon represents a DNA segment to which an activated repressor protein binds to. When this occurs, the transcription is prevented.
By controlling the operon, an organism is capable of regulation the expression on various genes. This is prompted by different environmental factors.
