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Ecology
The study of interations between biotic and abiotic components in an ecosystem
| Term | Definition |
|---|---|
| Ecosystem | A complex, self-regulating system in which living things interact with each other and non-living things. Ecosystems come in all sizes and are made up of different biotic and abiotic characteristics. |
| Healthy ecosystems have... | An energy source, definite boundaries, biodiversity, nutrients, minerals, water, etc. |
| Biodiversity | a variety of different organisms with different roles in an ecosystem. |
| Sustainable | populations of plants, animals and other living organisms can continue to interact and reproduce indefinitely. Sustainability helps support future generations. |
| Stewardship | A way of acting that involves taking personal responsibility for the management and care of something. For example: the environment |
| Species | group of organisms that can reproduce with each other, and their offspring are viable. |
| Community | populations of different species live and interact in an area where an organism lives. |
| Niche | an organisms role in an environment. |
| Biomes | large geographical area that contains similar ecosystems. Categorized by average rainfall, temperature and plants. |
| how many biomes are in Canada.. | there are 5 terrestrial biomes in Canada and 2 aquatic biomes. Ecosystems combine to make biomes. Biomes combine to make the atmosphere. |
| Marine Biomes | marine biomes are found within the ocean, and have a high salt content. |
| Fresh water Biomes | fresh water biomes are found within the lakes, streams, rivers and wetlands, and have a low salt content. |
| Atmosphere (Air) | layers of gases that surrounds the earth. it contains water, carbon dioxide, oxygen, Ozone, etc. the atmosphere help keep the plants warm. |
| Lithosphere (Ground) | earths solid outer layer, includes the rigid crust and upper mantle. It runs 100km down from the surface. It also includes soil. |
| Hydrosphere (Water) | ALL of the water on earth. 97% of this water is salt water in the earths oceans. all living things depend on water for survival. |
| What sustains life on earth? | Solar energy, the cycling of matter, and gravity. |
| Organic Substances | contains atoms of C.H. and many times O.N. (for example: proteins, sugars, fats) |
| Inorganic Substances | matter does not contain carbon and H (hydrogen) atoms (For example: nylon, carbon dioxide) |
| Decay | Organic minerals die, and then decomposers break them down and then recycle nutrients back to the earth. |
| Decomposers | (mushrooms, bread mold, bacteria, fungi) break down organic matter into small inorganic molecules. |
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