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Biology 20 Chapter 4 Exam Questions and Answers
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Biology 20 Chapter 4 Exam Questions and Answers
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Biology 20 Chapter 4 Exam Questionsand Answers
Exotic vs indigenous - Answers -Exotic plants that have been brought into places
Indigenous is natural to that area
What factors give a high biotic potential? - Answers -1.Birth Potential
2.Capacity for survival
3.Breeding frequency
4.Length of reproductive life
Natural vs Artificial - Answers -Natural ecosystem the living community is free to interact
with the physical and chemical environment but it doesn't mean humans haven't
touched it (prairie)
Artificial ecosystems are planned or maintained by humans (park)
Ecotone - Answers -transition area between ecosystems
Layers of vegetation in a forest - Answers -Canopy- upper layer of vegetation
Understory- below the canopy, usually shrubs and small trees
How can plants affect other plants? - Answers -Sunlight, as they grow they affect the
amount received by other plants in the vecinity
Layers of soil in a ecosystem - Answers -1.litter
2.topsoil
3.humus
4.subsoil
5.bedrock
Zones of a lake - Answers -Limnetic Zone- plankton (fish, tadpoles and birds)
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