Which of these is an example of genetic variation? A. Two lizards are fighting and one loses its tail.

B. Bacteria reproduce asexually and produce two clones.

C. Two sisters are born with brown hair and one dyes their hair blonde.

D. In butterflies, some are born with more dark colored spots than others.

D. in butterflies, some are born with more dark colored spots than others.

Explanation:

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because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.