The specific surroundings where an organism lives and functions. It can also be called a habitat, niche or territory. The term can be used to describe all or parts of the biosphere

Atom → molecule → organelle → cell→ tissue → organ

system → organism→ population → community→ ecosystem → biosphere

Organisms that can interbreed and produce fertile offspring.

Example: all humans are the same species with the scientific name Homo sapiens

Part of the aquatic biome found in or around the ocean (salt water).

Part of the aquatic biome found in or around freshwater lakes, rivers or ponds

The biomes that that occur on land.

Ecosystems with common characteristics, climates and weather patterns: Mountains, Desert, Grasslands, Forests or Aquatic

Organisms that “fight” for limited resources such as food, water or mates. It can be between organisms from different species or between organisms of the same species.

A symbiotic relationship where one species obtains food or benefits from another species without benefitting or harming the other.

A symbiotic relationship that benefits both members of two different species.

A symbiotic relationship where one organism (the parasite) benefits from and hurts another (the host).

Usually the parasite is getting food from the hosts body.

A relationship where one organism (predator)

eats another organism (prey),

usually of a different species.