World Biomes

The lesson “Food Chains”, comes from a natural science course. Natural sciences, such as biology, deal with nature and the physical world. To get ready for the lesson on food chains, you need to understand certain terms.

Ecology lecture. “Food Chains.”

Today I’m going to discuss some concepts and terminology related to ecology, specifically, ecosystems and, the classifications of organisms that live there, and, the food chains and food webs within ecosystems.

OK, let’s start with the definition of system: a system is a group of  elements or parts that work together. In any system, those different parts rely, that is, they depend on each other.