Chapter.15 Living Organism in Their Environment [JHS]

Organism interact with their environment

Ecology is the study of the interaction between living organism and their environments
Habitat is the are where organism lives
Population is a group of organism of the same species
Community is all the organism of all the different species living in the same habitat
Ecosystem is interaction between community with its environment
Niche is the role of an organism in their ecosystem

All living organism need energy, they get energy from food by respiration. All the energy in an ecosystem comes from the sun.

Food chains = representations of the predator-prey relationships between species within an ecosystem or habitat.
Components of food chain:
Producers ex. Green plants
Primary consumers ex. herbivores
Secondary consumers ex. Carnivores
Tertier consumers ex omnivores

Food web = inter-relationship between many food chains

The Water Cycle

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