Invertebrate/Sponge Questions

1. Why are invertebrate fossil records scarce for early invertebrates but suddenly appeared about 570 million years ago?

2. What were the three types of body plans in invertebrates?

3. What does Porifera mean?

4. What higher organisms evolved from sponges?

5. What is the sponges single purpose in life?

6. What are some uses of spicules and what can they be made of?

7. What do sponges eat?

8. Where are sponges found?

9. Of what importance are sponges/what harm?

10. What is spongin?