SmithLifeScience                                             Name __________________ Period _____

Reading Study Guide Chapter 9 Sponges, Cnidarians, and Worms
9-2 Animal Symmetry  (pp.300-302)

The Mathematics of Symmetry (p.300-301)

1. The balanced arrangement of an animal's body is called __________________.

2. An object has ___________________________ if there is just one line that divides it into halves that are mirror images.

3. An object with ___________________________ have many lines of symmetry that all go through a central point.

4. A butterfly has ________________ symmetry.

5. A starfish has ________________ symmetry.

6. A sponge has ________________ symmetry.

Symmetry and Daily Life  (p.301-302)

7. Animals without symmetry tend to have _______________ bodies.

8. Animals with bilateral or radial symmetry have ____________ bodies.

9. Animals with radial symmetry have a _________________ arrangement of body parts.

10. All animals with radial symmetry live in ____________.

Name the 2 ways an animal with radial symmetry can move.

11. __________________________
12. __________________________

13. Do you have radial or bilateral symmetry?  I have _______________ symmetry.

14. If an animal has a head end and a tail end, it has ______________ symmetry.

15. Where are the sense organs of an animal with bilateral symmetry found? __________