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A biological community of interacting organisms and their physical environment. |
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| the place where an organism lives |
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an individual animal, plant or single celled life form |
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| a group of living things capable of exchanging genes or interbreeding |
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| the amount of inhabitants in a particular area |
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| a group of biotic things living in the same area |
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| Name and describe the 5 biotic interactions |
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Predation- relationship where one organism eats another to gain energy and nutrients (+,-) ex. Lion catches and eats a zebra
Commensalism- an association between two organisms where one benefits and the other derives no harm nor benefit. Ex:Barnacle grows on a whale. (+,0)
Mutualism- symbiosis that is mutually beneficial to both organisms. Ex: Bumblebee collecting pollen and transporting it. (+,+)
Competition- interactions between organisms, populations or species. In which birth growth and death depend on gaining a particular resource. Ex: Giraffes fighting for food. (-,-)
Parasitism- where one species benefits at the expense of the other organism. Ex:mosquitoes and other organisms. (+,-) |
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| An organisms Nicheincludes all the ways in which an organism contributes and fits into its environment, including its interactions required for it to survive, grow and reproduce. |
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| Biotic means living, Abiotic means non-living |
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| What is a biome? How many kinds are there? |
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| A biome includes a large region that has similar biotic and abiotic components. |
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| Abiotic Factors that influence Biomes |
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L.E.W.O
Latitude
Elevation
Weather(Temp/Precip)
Ocean Currents |
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Charecteristics that enable organisms to better survuve and reporduce. There are 3 kinds
- Structural: physical feature having a specific function. (Porcupine quills protect them)
- Physiological:Physical/Chemical event occuring insed the body(Photosynthesis,skunk spray)
- Behavioural: what an organism does to survive in the unique conditions of its enviromnment. (migration)
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| Refers to the total mass of living plants, animals, fungi and bacteria in a given area. |
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| the breaking down of organic wastes such as dead organisms. |
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| The action of livig organisms such as bacteria to break down dead organic matter is called biodegredation |
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| What are food chains and what are trophic levels? |
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Food chains are models that show the flow of energy from plant to animal and animal to animal.
Trophic levels in a food chain show the feeding and niche relationships among organisms |
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| What are the four trophic levels? |
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Definition
- Primary Producer (plants)
- Primary Consumers (grasshopper)
- Secondary Consumer (spotted frog)
- Tertiary Consumer (red-tailed hawk)
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