All insects are arthropods, but not all arthropods are insects ... ancestors – animals with a backbone – ever walked on land. A species is the most basic unit that biologists use to classify living ...

This unit was about insects, so we learned all the characteristics of what makes an insect an insect.” The insect unit, a part of the CKLA Knowledge curriculum, was popular with students ...

All insects are arthropods ... A species is the most basic unit that biologists use to classify living things. When people use words like “ant” or “fly” or “butterfly” they are ...