Answer the following:
1. A drop in a pH of _____ units has a measurable effect on sea urchin larval growth?
2. What does this data suggest?
3. Why does this effect the sea urchin larvae?
4. What would this do to the sea urchin population
5. How would this effect other animals that feed upon sea urchins?
6. Name an animal which feeds upon adult sea urchins