Spider Bodyparts,Write an explanation of how a spider web works. 5. Check your work with the assessment lists. Figure 5.11a. Performance Task: Spider Body Parts see the assessment lists on pages 170, 171, and 172 Background Spiders have body parts to HERE'S AN IDEA Have student's compare and contrast spiders and insects. Assign one group to brainstorm how spiders and insects are alike. Assign the other Visit this interactive Web site, and take a tour of a spider's body parts. Click on a Spiders are very successful creatures having been around, more or less unchanged, for hundreds of millions of years. The most obvious difference is that they have two main body parts cephalothorax and abdomen whereas most insects Both spiders and.insects are invertebrates. But spiders are not insects, though many people think so. If you look closely at a spider and an insect, you can see how different they are. An insect has three main body parts. The head is in front.arachnid (uhRAKnuhd) an order of animals with two body parts and eight legs. arthropod a member of the phylum Arthropoda with an exterior skeleton. bacteria tiny, onecelled organisms that can only be seen through a microscope.Whitetailed spiders are easy to identify. Their bodies are long and tapered. They have eight eyes and eight long, thin legs. They also have two chelicerae and two pedipalps. Like all spiders, whitetailed spiders have two body parts. The head But one way to tell if an animal is an arachnid.is to count its legs and body parts. While not every adult arachnid has eight legs, most do. Arachnids also usually have two main body parts. Adult horseshoe crabs have ten legs and a shell divided the body. pedipalp (PEHduhpalp) either of the leglike organs of a spider that are used to sense motion and catch prey. predator an animal that kills and eats other animals. spinneret either of the two body parts attached to the abdomen It has two body parts. Black and yellow garden spider It does not have antennae. i 1 I It sees with eight simple eyes. abdomen, 6, 'l antennae, 10, 11, 18, 19 body parts,. animal does not have wings. Enslow Elementary, an imprint of Enslow Jill C. Wheeler. Abdomen Leg Cephalothorax Pedipalp.Chelicera The Body Parts of a Crab Spider Pedipalp Abdomen Leg Cephalothorax Chelicera The Body Parts of a Crab Spider Colors Crab spiders vary in color. They are often colored. 9.