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| Basic Needs of Biotic Elements |
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Definition
1. oxygen
2.water
3. food
4. energy
5. suitable habitat (place to live) |
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| Organism that can make its own food to supply energy for survival |
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| chemical reaction that takes place in the green leaves of a plant- this process makes food for the plant |
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| compound that gives green colour to a plant |
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| Photosynthesis by-product |
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| Three Roles of a Producer |
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Definition
1. provide food
2. produce oxygen
3. provide shelter |
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| groups of individuals that belong to the same species and live in the same ecosystem |
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| most closely related group of living things |
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| made up of populations of different species that live and interact in a habitat |
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| organisms (animals) that cannot make thier own food and must consume other living things to get nutirents |
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Definition
1. Herbivore (plant eater)
2. Omnivore (plant and meat eater)
3. Carnivore (meat eater) |
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| Animals that hunt for food (consume prey) |
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| animals that are hunted for food (consumed by predators) |
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| various roles an animal can play in an ecosystem |
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| List three special types of consumers |
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Definition
1. Scavengers
2. Decomposers
3. Detrutivores |
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Definition
| Special type of consumer that feeds off the remains of previously killed animals |
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| Special type of consumer that feeds off organic matter (waste) |
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| Special type of consumer that break down dead plants and animals into smaller peices |
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linear feeding relationships between producers and consumers
** always begins with producers |
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a complex network that shows interconnected food chains
[image] |
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| plants and animals that were occur naturally in an ecosystem |
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| organism brought to an environment where it did not live before |
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| introduced species that interfere with the natural ecosystem |
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| term used to describe the introduction of foreign species into a native ecosystem |
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| top consumer of an energy pyramid |
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| the natural replacement of one community of living things by another |
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| the formation of a new community where no community has existed |
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| the first plant/organism that come to live in an area where plants and animals have not lived before |
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| occurs when a community has been destroyed or disturbed by natural occurances (flood, fire or earthquake) or human activities |
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