1. How does primary succession differ from secondary succession? 2. Why are the later colonizers of a habitat dependent on earlier waves of colonizers? 3. What usually happens to the total biomass in...

1. How does primary succession differ from secondary succession?

2. Why are the later colonizers of a habitat dependent on earlier waves of colonizers?

3. What usually happens to the total biomass in an ecosystem during succession? Does the number of species present in an ecosystem usually change as succession continues?