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Biology 20-1 Unit B (Alberta Curriculum) Exam Questions and Answers 100% Pass £9.60
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Biology 20-1 Unit B (Alberta Curriculum) Exam Questions and Answers 100% Pass
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Biology 20-1 Unit B (Alberta Curriculum) Exam Questions and Answers 100% Pass Ecology - The study of interactions between organisms and their living and non-living environment. Abiotic Factor - A non-living factor that influences an organism. Biotic Factor - A living factor that influences an ...

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  • January 8, 2025
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • biology 20 1 unit b alberta curriculum exam ques

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Biology 20-1 Unit B (Alberta
Curriculum) Exam Questions and
Answers 100% Pass

Ecology - ✔✔The study of interactions between organisms and their living and non-living environment.


Abiotic Factor - ✔✔A non-living factor that influences an organism.


Biotic Factor - ✔✔A living factor that influences an organism.


Ecotone - ✔✔A transition area between ecosystems.


Ecological Niche - ✔✔An organism's role in an ecosystem, consisting of its place in the food web, it's

habitat, it's breeding area, and the time of day at which it is most active.


Biome - ✔✔A large geographical region with a specific range of temperatures and precipitation, and the

organisms that are adapted to those conditions of temperature and precipitation.


Canopy - ✔✔The upper layer of vegetation in a forest.


Permafrost - ✔✔Permanently frozen soil.


Muskeg - ✔✔Soil above the permafrost that is swampy or boggy in summer.


Understorey - ✔✔Below the canopy layer; usually shrubs and smaller trees.


Littoral Zone - ✔✔The area from the shore of a lake or pond to the point where no more plants grow in

the lake bottom.




Author. Emily Charlene, ©2025 All Rights Reserved.

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Limnetic Zone - ✔✔The area of a lake or pond in which there is open water and sufficient light for

photosynthesis to occur.


Plankton - ✔✔Autotrophic and heterotrophic microorganisms found in the limnetic zone of a lake or

pond.


Profundal Zone - ✔✔The region of a lake beneath the limnetic Zone, in which there is insufficient light for

photosynthesis to occur.


Litter - ✔✔The upper layer of soil, composed mainly of partially decomposed leaves or grasses.


Topsoil - ✔✔The soil layer beneath the litter, composed of small particles of rock mixed with humus.


Humus - ✔✔Decaying plant and animal matter.


Subsoil - ✔✔The soil layer beneath the topsoil, usually containing more rock particles and less organic

matter than the topsoil.


Bedrock - ✔✔The layer beneath the soil, composed of rock.


Epilimnion - ✔✔The upper level of a lake, which warms up in summer.


Hypolimnion - ✔✔The lower level of a lake, which remains at a low temperature year round.


Thermocline - ✔✔The zone between the epilimnion and hypolimnion, in which temperature changes

rapidly.


Biotic potential - ✔✔The maximum number of offspring that a species could produce with unlimited

resources.


Carrying Capacity - ✔✔The maximum number of individuals of a species that can be supported by an

ecosystem.


Law of the Minimum - ✔✔States that the nutrient in the least supply is the one that limits growth.



Author. Emily Charlene, ©2025 All Rights Reserved.

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