1. How Populations Survive Chapter 5, Lesson 3
limiting factor
carrying capacity
endangered species
extinct
threatened species

2. limiting factor – anything that controls the growth or survival of a population
predators
predators
camouflage
food sources

3. carrying capacity – the maximum population size that the resources in an area can support

4. endangered species – a species that is in danger of becoming extinct
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5. extinct – a species that has died out completely
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6. threatened species – a species that may become endangered

7. urban growth – the movement from a rural (country) area to an urban (city) area

8. pollution – when the air, water, or soil is dirtied by chemicals and/or trash

9. strip mining – when people carve the land to get rocks that are near the surface

10. fertilizer – chemicals used to make plants grow more effectively

11. agriculture – farming; cultivating or growing plants for food or to meet other needs and wants