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Lesson 1 to 4
Question | Answer |
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Organism | an individual animal, plant, or single-celled life form. |
Habitat | the natural home or environment of an animal, plant, or other organism. |
Biotic factor | A biotic factor is a living organism that shapes its environment. |
abiotic factor | An abiotic factor is a non-living component in the environment. |
population | all the inhabitants of a particular town, area, or country. |
community | a group of people living in the same place or having a particular characteristic in common. |
ecosystem | a biological community of interacting organisms and their physical environment. |
limiting factor | the factor that limits the reaction rate in any physiological process governed by many variables |
resources | a stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function . |
density | the degree of compactness of a substance. |
producer | Producer: is an organism, either a green plant or bacterium, which is part of the first level of a food chain. . |
consumer | Consumer: is an organism that feeds on plants or other animals for energy. |
deconsumer | Decomposer: is an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler |
food web | A food web consists of all the food chains in a single ecosystem |
food chain | a hierarchical series of organisms each dependent on the next as a source of food. |
energy pyramid | An energy pyramid is a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem. |
role | the function assumed or part played by a person or thing in a particular situation. |
niche | An ecological niche is the role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces. |
competition | Competition is an interaction between organisms or species in which both the organisms or species are harmed |
predation | the preying of one animal on others. |
Symbiois | interaction between two different organisms living in close physical association, typically to the advantage of both. |
commensalism | an association between two organisms in which one benefits and the other derives neither benefit nor harm. |
Mutualism | the doctrine that mutual dependence is necessary to social well-being. |
Parasitism | the practice of living as a parasite in or on another organism. |
interactions | takes place among organisms every day |
Succession | a number of people or things sharing a specified characteristic and following one after the other. |
pioneer species | The pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been |
Colonize | (of a country or its citizens) send a group of settlers to (a place) and establish political control over it |
Dominate | have a commanding influence on; exercise control over. |