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Lesson 3 Unit 1 Ecology & the Environment

Lesson 3 Unit 1 Ecology & the Environment. 1. What is a factor that increases population size? A) Lack of water B) Large food supply C) Competition for space D) All of the above. 2. What is a factor that will decrease a population size?.

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Lesson 3 Unit 1 Ecology & the Environment

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  1. Lesson 3 Unit 1 Ecology & the Environment

  2. 1. What is a factor that increases population size?A) Lack of waterB) Large food supplyC) Competition for spaceD) All of the above

  3. 2. What is a factor that will decrease a population size? A) Lack of waterB) Diminishing food supplyC) Competition for spaceD) All

  4. 3. Which is a biotic limiting factor in an ecosystem? A) A flood B) A hurricane C) A drought D) ALL E) NONE

  5. A) A floodB) A hurricaneC) A droughtD) ALLE) NONE 4. Which is an abiotic limiting factor in an ecosystem?

  6. 5. Which are biotic factors and which are abiotic factors? predators water soil rocks pollution plants mammals erosion

  7. 6. The maximum number of individuals of one species that an environment can support is called ______________________________

  8. 7. What is the difference betweenimmigration and emigration?

  9. 8. Name at least three things that can cause a population crash?

  10. 9. If biotic and abiotic limiting factors increase, what will happen to the carrying capacity?

  11. 10. List three examples of competition in an environment.

  12. 11. Cooperation is when individuals… • compete for food • immigrate C) emigrate D) work together

  13. 12. Give an example of a social hierarchy in one species.

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