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Ecology
| Question/Term | Answer/Definition |
|---|---|
| Ecology | A branch of biology concerned with the study of the interaction of living organisms with each other and with their environment |
| Ecosystem | A community of organisms that interact with their environment |
| Biosphere | A region of the Earth where life can exist |
| Habitat | A place where an organism lives |
| Abiotic factor | Anything that is non-living and has an effect on living organisms in an ecosystem |
| Climatic factors | Weather conditions that have an effect on living organisms in an ecosystem |
| Edaphic factors | Anything relating to the soil or geology of land that have an effect on living organisms in an ecosystem |
| Biotic factor | Anything that is living and has an effect on other living organisms in an ecosystem |
| Pathogenic | Capable of producing disease |
| What does a grazing food chain represent? | It represents the sequence of predator-prey relationships in an ecosystem. |
| Define a food web | A food web is two or more interconnected food chains |
| What does an ecological pyramid of numbers show? | It shows the numbers of organisms at each trophic level in a food chain |
| Niche | The functional role an organism plays in its habitat |
| Name the factors that control the numbers of organisms in an ecosystem | Population and community |
| Differentiate between Population and Community | Population is a group of organisms living in a habitat that belong to the same species WHILE community is a group of organisms living in a habitat that belong to many different species |
| Competition | The struggle between organisms for a resource that is in limited supply |
| Resource | A stock or supply such as food that can be drawn on |
| Name the two types of Competition | Contest competition and Scramble competition |
| Differentiate between Contest and Scramble competition | Contest competition is the direct fight between two organisms for a resource that is in short supply WHILE Scramble competition is the struggle amongst a number of organisms for a resource in short supply |
| Nutrient recycling | The process of exchanging important elements between living organisms and the environment |
| Carbon cycle | The process through which elemental carbon(in the form of biomolecules) is exchanged between living organisms and their environment |
| Nitrogen cycle | The process through which elemental nitrogen (in the form of biomolecules) is exchanged between living organisms and their environment |
| Pollution | This is simply defined as any undesirable change to a habitat |
| Eutrophication | A process where water receives too many nutrients that stimulate excessive algal growth |
Created by:
Oluwaseun
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