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Grade 9 Population Ecology Worksheet with Answers
Grade 9 (US) · Year 10 (UK) · Class 9 (India) · Science
Unit 4: EcologyPopulationsNGSS HS-LS2-1
Population growth, limiting factors, carrying capacity and biodiversity. This free high school worksheet has 11 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comPopulation Ecology
Grade 9 · Science
Name
Class
Date
Learning goal: Populations · NGSS HS-LS2-1
Directions: Read each question carefully and write your answer on the line.
RememberPopulation growth
- 1
Logistic growth looks like what shape on a graph?
- 2
What is an invasive species?
- 3
Exponential growth looks like what shape on a graph?
- 4
What is carrying capacity?
- 5
What happens to a deer population if wolves are removed?
- 6
What is a population?
- 7
Why do ecosystems with more biodiversity recover better?
- 8
Name a limiting factor for a population.
- 9
What is a community?
- 10
What is biodiversity?
- 11
What is ecological succession?
★ Challenge corner for fast finishers
Ice floats in water. What does that tell you about its density?
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Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/9/ecology_populations
Answer key — Population Ecology (Grade 9)
- 1.an S-shaped curve
- 2.a non-native species that spreads and harms an ecosystem
- 3.a J-shaped curve
- 4.the largest population an environment can support
- 5.it grows, then may crash when food runs out
- 6.all the members of one species in an area
- 7.more species can fill roles if some are lost
- 8.food, water, space, predators or disease (any one)
- 9.all the populations living in an area
- 10.the variety of life in an area
- 11.gradual change in the species of a community over time
- ★ice is less dense than liquid water
Answer key (click to show)
- 1.an S-shaped curve
- 2.a non-native species that spreads and harms an ecosystem
- 3.a J-shaped curve
- 4.the largest population an environment can support
- 5.it grows, then may crash when food runs out
- 6.all the members of one species in an area
- 7.more species can fill roles if some are lost
- 8.food, water, space, predators or disease (any one)
- 9.all the populations living in an area
- 10.the variety of life in an area
- 11.gradual change in the species of a community over time
- ★ice is less dense than liquid water (challenge corner)
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