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# Population Size, Density, and Distribution

## Overpopulation is a historic concern, by studying patterns of natural populations we can learn ways to prevent our population from overgrowing.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## 2.17 Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution *

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution

Overview of population size, density, and distribution.
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## Population Size, Density, and Distribution Reading

This brief reading from CK12 defines population size, density, and distribution patterns. Explore activities that follow the reading provide opportunity for students to apply concepts to real world populations.
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• PLIX

## Population Density

Population Size, Density, and Distribution Interactive
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• Video

## Population Characteristics

This video reviews: population density, geographic range, age structure, immigration, and emigration.
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• Lesson Plan

## A look at the Population Density of the United States

This lesson includes introduction, procedure, closing, suggested assessment and extension. This lesson focuses on the spatial distribution of the population density of the United States at different levels of scale.
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## Population Size, Density, and Distribution Quiz

Useful measurements of population structure
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• Critical Thinking

## Population Size, Density, and Distribution Discussion Questions

A list of student-submitted discussion questions for Population Size, Density, and Distribution.
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• Real World Application

## Some Toads Are Better Than Others

This addresses the worldwide decline in amphibians, looking at how scientists are approaching this problem and what they are learning.
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• Real World Application

## Some Toads Are Better Than Others

This addresses the worldwide decline in amphibians, looking at how scientists are approaching this problem and what they are learning.
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• Real World Application

## Wild Horses

Covers artificial selection and domestication of animals by looking at conservation efforts to revive populations of the only truly wild, as opposed to feral, horse population remaining.
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• Real World Application

## A Shared Burden

Find out how biodiversity helps slow the spread of disease.
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• Study Guide