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?
spiders do not have eight legs.
insects do not have six legs.
if spiders evolved first, six legs is the derived trait.
spiders do not have derived traits, since they evolved first.

If spiders evolved first, six legs is the derived trait, is the piece of information that Antonio is considering.

This is because a derived trait is a trait possessed by an organism which was not present in its last common ancestor or the structures absent in an organism which was present in the ancestor (this is known as a secondary loss).

This means that if spiders evolved first, then the six legs possessed by the insects should be a derived trait and not the eight legs of the spider.

c. movement because i took the test and it lets me review my answers

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

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