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Lesson 2
Lesson 2 Which Animals Are Invertebrates?
| Question | Answer |
|---|---|
| What are invertebrates? | Animals that do not have backbones. |
| What is an arthropod? | An invertebrate that has jointed legs, a body with two or more sections, and a a hard outer covering. |
| What are the three major traits of a sponge? | They move very little, their bodies are full of holes, and they filter tiny bits of food from the water. |
| What are the four major traits of sea stars and sea urchins? | They have spiny body coverings, their is no head, they have a mouth, and they move using their tube feet. |
| What are tube feet? | Tiny suction cups used to move. |
| What are the 4 major traits of worms? | They have soft, tube-shaped bodies, no legs, no eyes, and no shells. |
| What are the three different places worms could live? | They could live in water, in soil, or inside other animals. |
| What are the 3 major traits of corals, and jellies? | They have soft bodies, but some corals have a hard outer skeleton. They also have mouths. They also have tentacles. |
| Where do corals and jellies live? | They live underwater. |
| What are tentacles? | They are armlike parts on animals. |
| How do animals use their tentacles to eat? | This armlike part to grab food that floats by to put it into their mouths. |
| What is an animal that has a mouth, tube feet, and no head? | It is a sea star or sea urchin. |
| What is the largest group of invertebrates? | An arthropod. |
| What are the three major traits of an arthropod? | They have jointed legs. They have a body with two or three sections. Also, they have an exoskeleton. |
| What is an exoskeleton? | It is a hard outer covering. |
| What is the function of an exoskeleton? | Its job is to protects and supports the animal. |
| What are the four major groups of Arthropods? | One group is butterflies and ants. Another group is centipedes and millipedes. Also there is a group of spiders. Another group is crabs, lobsters, and crayfish. |
| What is the largest groups of arthropods? | Butterflies and Ants |
| What are the three major traits of butterflies and ants? | They have six legs, and three body sections. They may or may not have wings. |
| What are the two major traits of centipedes and millipedes? | They have segmented bodies. They can have one pair of legs on each segment or two pairs of legs on each segment. |
| What is one major difference between a centipede and a millipede? | The amount of legs they have on each segment. The centipede has 1 pair of legs on each segment. The millipede has 2 pairs of legs on each segment. |
| Is an arthropod an invertebrate or a vertebrate? | It is a invertebrate. |
| What are the 4 major traits of spiders? | They have 8 jointed legs, two body sections, jaws, and fangs. |
| What unique thing does most spiders do? | They spin webs. |
| What is one major trait that crabs, lobsters, and crayfish have? | They have an exoskeleton. |
| Name six animals that are mollusks. | Snails, squid, octopus, clams, oysters, and scallops. |
| What are the 2 major traits of the snails, and squids? | They have soft bodies. Most have a shell. |
| What animal has an exoskeleton, and one pair of legs on each of its body segments? | It is a centipede. |
Created by:
sandwaterlife
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