"Interdependence and Interaction Among Organisms and, between Organisms and the Environment."

Habitat

Natural surroundings or home of an organism

Species

Group of organisms that have common characteristic and can reproduce to breed offsprings

Population

Group of organisms of the same species that live in the same habitat

Community

A few populations of different organisms that live together in one habitat and have mutual interaction with one another

Ecosystem

A few communities that live together in one habitat and have mutual interaction with one another

Balanced ecosystem

The interdependence that exists between organisms and their natural surroundings

Non-living components in the environtment that affect the interdependence of organisms

Water, light, air and soil

Types of interaction between organisms

Symbiosis, Prey-predator and Competition

Types of symbiosis

Mutualism, commensalism and parasitism

Mutualism

An interaction that benefits both organisms