- Ecosystem: Community of plants, animals, and
microorganisms that are linked by energy and that interact with each other and with the physical environment. For example,
- Habitat: The specific area or environment in which
a particular type of plant or animal lives. It must provide all the basic requirements for survival, such as food, water,
shelter, and living space.
- Biome: Major division of the ecological communities
on Earth characterized by the plant and animal life of that region.
- Biosphere: Part of the Earth system in which life
can exist, between the geosphere and the atmosphere.
- Abiotic Factors: The non-living components of the
environment, such as air, rocks, soil, water, peat, and plant litter.
- Biotic Factors: The living organisms that
impact the growth, composition, and structure of the environment, such as animals and plants.
- Food Chain: The relationship between plants and
animals that shows who eats what. Energy is transferred from one organism to another through the food chain.
- Food Web: Many interconnected food chains and feeding interactions.