Sponge Defenses

Answer the following questions:

1. Why are sponge spicules not effective defensive structures against fish predators?

Don't use plagiarized sources. Get Your Custom Essay on
Sponge Defenses
Just from $13/Page
Order Essay

2. How do you think sponge spicules prevent encroachment by anemones that may compete for sponge living space?

3. List 2 sponge metabolites that have protective characteristics against predators. Then, do a little internet research-what other organisms produce these same metabolites?

4. With regards to growth and distribution, how do chemically defended sponge species differ from undefended sponge species? Why the differences?