When considering classical mathematics, the Greeks must be a main focus of our attention. In fact, the primary reason for discussing earlier mathematics is to understand what the Greeks inherited and what they left to their posterity.
The organisms that engage in primary succession are known as pioneer species. Typical pioneer species include simple lichens, algae, and fungi. These simple organisms begin breaking down the resources in the environment and make it suitable for the later introduction of more complex species, such as vascular plants.
There are different stages of succession and they each occur in different phases. Primary succession occurs when life begin to develop in an area that did not have any org â¦ anisms existing before and it forms an community. What usually causes succession to occur? In terms of ecology, succession references how species structures change in an ecological community over time.