types of animals

1. Animal without backbones (vertebrate)

2. body parts arranged around a central point (radial symmetry)

3. animal that eat only other animals (carnivores)

4. animal that eat just plant (herbivores) 

5. animal that produces  produce sperm and egg in 1 body (hermaphrodite)

6. animal with backbone (invertebrate)

7. body parts arranged similarly on both sides of the body (bilateral symmetry)

8. cnidarian body that is vase shaped (polyp)

9. attached to 1 place (sessile)

10. cnidarian body that is bell shaped (medusa)

11. which of the following animals is sessile

A) jellyfish  B) roundworm

C) planarian  D)sponge

12. what characteristics do all animmals have?

A) digest their food  B) radial symmetry

C) free-living  D) polyp and medusa forms 

13. which term best describes a hydra

A) carnivore  B) herbivore

C) filter feeder  D) parasite

14. which animal has a mouth and an anus

A) roundworms  B) planarian

C) jellyfish  D) tapeworm

15. what characteristics do scientist use to classify sponges?

A) material that makes up their skeleton  B) nethod of obtaining food

C) reproduction  D) symmetry

16. which animal is cnidarian? 

A) fluke  B) jellyfish 

C) heartworm  D) sponge

17. the photo above shows which hermaphroditic invertebrate organism?

A) fluke  B) tapeworm

C) coral  D) roundworm

18. how do sponges reproduce asexually? 

A) budding  B) medusae

C) polyps  D) eggs and sperm

19. what is the young organism  that the fertilized egg of a sponge develops into? 

A) bud  B) medusa

C) larva  D) polyp

20. which group do roundworms belong to?

A) cnidarians  B) planarians

C) nematodes  D) sponges

21. compare and contrast the body organization of a ponge to that of a flatworm.


A hollow tube that is closed at the bottom and open at the top, have bilateral symmetry and have senses in the head region.

22. infer the advantages of being able to reproduce sexually and asexually for animals like sponges,cnidarians, and flatworms.

23. list the types of food that sponges,hydras, and planarians eat. explain why each organism eats a different size of particle.

24. compare and cosntrast the medusa and polyp body forms of cnidarians.

25. infer why scientists  think the medusa stage was the 1st stage of the cnidarian.


26. form a hypothesis about why cooking pork at high temperatures prevents harmful round worms from developing, in the uncooked meat.


27. predict what you can about the life of an organism that has no mouth or digestive system but has suckers and hooks on its head.


28.look at the photograph below.this animal escapes from predators by mimicry. where in nature would you find the animal in this photo?