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4th Grade Invertebrates and Vertebrates
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4th Grade Invertebrates and Vertebrates
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25 Questions

1. animals without a backbone

2. planarian

3. flat bodies - have head and tail - simplest worms - live inside other animals

4. earthworms

5. insects, arachnids, crustaceans and centipedes/millipedes

6. Some invertebrates have more advanced bodies. ________ have a circulatory system and _______ have a nervous system with a brain.

7. nematode

8. Examples of invertebrates that have bodies that do not have any hard parts are .....

9. animals with a backbone

10. An __________ is a hard outer covering that protect an animal's soft body parts inside.

11. Invertebrates with an exoskeleton include ....

12. ________ and _______ have very different body parts.

13. Examples of invertebrates

14. Three types of worms

15. Examples of vertebrates

16. largest group of invertebrates

17. Most animals with hard shells live in _______. Some, like the snail, live on land.

18. Most hard shelled animals have some kind of ______ that can help them move, dig or anchor themselves.

19. ________ have spiny skin and an internal support system, an endoskeleton.

20. Invertebrates only have one opening in their body where _______ passes in and _______ passes out.

21. Many invertebrates have very simple _________.

22. invertebrates that have soft bodies protected by hard shell

23. snails and oysters

24. invertebrates that have legs with joints and body segments. They also have sense organs such as eyes.

25. bodies have three layers - bodies divided into segments - have digestive system - do not live in other animals - all segmented are identical, except for head and tail

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