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