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.
Answer by Blu WikiAnswers. Confidence votes 34.6K. Primary succession starts in a virtually lifeless area where the soil has not yet formed due to environmental factors, such as on a new volcanic island or on the rubble (also called moraine) left behind by retreating glaciers.