Answer: If it is almost impossible for a favorable trait to get passed down to offspring due to reproductive struggles, the species would not be able to undergo natural selection due to a lack in appearance of a trait.
Explanation:
If there are only two organisms with the adaptation, both of which lack any reproductive abilities, the odds of most of the species <em>not</em> dying out are very low. Only those two will have the adaptation and they rest will die out.
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DNA Mutations (Mutagens) causes this. Take a look at lung cancer..<span>and mutagens that cause cancers are known as carcinogens. (Hope it helps my friend)</span>
Answer:
A). Nearly Symmetrical
Explanation:
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