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? 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.

Answer 1

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.

Answer 2

Answer:

the process in which the exchange of gases between the body cells and oxygen takes place directly and for the transportation of gases, blood is not required. ... On the other hand, indirect respiration is defined as the process where there occurs no direct contact between the body cells