Biosphere:
A biosphere is the global sum of all ecosystems.
An example is a pond.

Habitat:
A habitat is an environmental area inhabited by a particular species of animal, plant or organism.
An example is rainforest.

Organism:
An organism is any contiguous living system.
An example is a flower

Population:
Total number of organisms of same species in same area.
An example is all the fish in a pond.

Niche:
Role of an organism in an ecosystem.
Example is a honeybee collects nectar and makes honey.

AUTOTROPH

• Makes nutritive organic molecules from inorganic sources
• Via photosynthesis or chemosynthesis
• An example is a Maple Tree

HERBIVORE

• An animal that consumes plants
• Ex: Sheep

CONSUMER

• An organism that obtains food from feeding on others
• Ex: A Tiger

DECOMPOSER

• Performs decomposition as it feeds on dead/decaying organisms
• Ex: Mushrooms

ECOSYSTEM

• Includes all living organisms (biotic & abiotic factors)
• Ex: A forest

HETEROTROPH

• An organism that cannot make its own food
• Must consume other organic material
• Example: Horse

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