
Limiting Factors
Presentation
•
Science
•
8th Grade
•
Medium
Standards-aligned
Sarah Newton
Used 124+ times
FREE Resource
6 Slides • 4 Questions
1
Limiting Factors
Density-dependent factors
and
Density-independent factors
2
Limiting Factors
Limiting factors are factors that limit the growth of a population and cause it to decrease.
https://www.youtube.com/watch?v=pPw51fDTl68
3
There are two types of limiting factors:
Density-dependent factors depend on the size of the population and occur only when the population reaches a certain level.
Density-independent factors affect all populations regardless of the population size.
4
Density-dependent factors
Competition
Predation
Disease
Parasitism
Crowding
5
Density-independent factors
Natural disasters
Temperature
Sunlight
Human activities
Physical characteristics
Behaviors
6
Density-dependent and density-independent factors can limit the growth of populations.
Density-dependent factors are those that have a greater effect as the population increases.
Density-independent factors are those that affect all populations, regardless of their density.
7
Multiple Choice
Which of the following is a density-dependent factor?
Drought
Tornado
Temperature
Competition
8
Multiple Choice
Which of the following is a density-dependent factor?
Lightening
Earthquake
Predation
Floods
9
Multiple Choice
Which of the following is a density-independent factor?
Disease
Competition
Floods
Predation
10
Multiple Choice
Which of the following is a density-independent factor?
Wildfire
Food supply
Disease
Competition
Limiting Factors
Density-dependent factors
and
Density-independent factors
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