Which option gives the correct cause-and-effect relationship for Variation and evolution, Selective breeding: students must identify useful or appearance-based traits selected by humans, including disease resistance, more meat or milk, gentle dog nature and large or unusual flowers.

The correct option is Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Selective breeding because students must identify useful or appearance-based traits selected by humans, including disease resistance, more meat or milk, gentle dog nature and large or unusual flowers.. It is the only option that keeps Mitosis vs meiosis separate and answers the approved learning objective in Selective breeding.

The correct option is Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Selective breeding because students must identify useful or appearance-based traits selected by humans, including disease resistance, more meat or milk, gentle dog nature and large or unusual flowers.. Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Selective breeding because students must identify useful or appearance-based traits selected by humans, including disease resistance, more meat or milk, gentle dog nature and large or unusual flowers. is correct because Mitosis maintains chromosome number; meiosis halves chromosome number. The learning objective says students must identify useful or appearance-based traits selected by humans, including disease resistance, more meat or milk, gentle dog nature and large or unusual flowers, so the answer must stay inside Selective breeding. The alternative options are wrong because they either claiming meiosis is used for body growth., claiming mitosis produces gametes., or drift away from mitosis questions must focus on identical cells, growth, repair, asexual reproduction, or maintained chromosome number..