Community and Ecosystem

Habitat

Natural surrounding or the living place of an organism

Species

A group of similar organisms, able to interbreed and produce offspring.

Population

A group of organisms of the same species which live in the same habitat.

Community

The population of all organisms from different species living in the same habitat whilst interacting with each other.

Ecosystem

A few communities that live together in habitat and interact with each other including non-living components.

Niche

The role of an organism in an ecosystem includes its behaviour and interaction with biotic & abiotic components in the habitat.

Biotic component

Refer to all organisms in an ecosystem that interacts with other organisms (Producers, consumers & decomposers).

Abiotic component

All the non-living elements like pH value, temperature, light intensity, topography, microclimate & air humidity that affects organisms.

Two types of autotrophic nutrition

Photoautotrophic & chemoautotrophic

Three types of heterotrophic nutrition

Saprotrophic, holozoic & parasitic