Question

mr. morales is teaching a lesson on classification. he says that spiders are classified as a different group than insects because they have eight legs instead of six legs. he explains that spiders evolved first. mr. morales also says that having eight legs is the derived trait that separates the two groups. antonio thinks mr. morales is wrong. which piece of information is antonio considering? if spiders evolved first, six legs is the derived trait. spiders do not have eight legs. spiders do not have derived traits since they evolved first. insects do not have six legs.

Explanation:

In evolutionary biology, if spiders evolved first, then the trait of having six - legs in insects would be the derived (newly evolved) trait, not the eight - legs in spiders. This contradicts Mr. Morales' claim that eight - legs is the derived trait separating the two groups.

Answer:

If spiders evolved first, six legs is the derived trait.