Section 4.2 – What Shapes an Ecosystem? Biotic factors – the biological (living) influences on organisms within an ecosystem. Abiotic factors – the physical,
In order to determine the type of relationship between two organisms, first determine if each organism is being helped, hurt, or not affected. If both.
Changes in Ecosystems: Ecological Succession
Ecological Succession Primary and Secondary. What is it? The normal GRADUAL (takes a long time) changes that occur in the types of species that live in.
2.6.5-.7 Succession