Selective Pressure: Definition & Example Video


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question 1 of 3

Organisms evolve new traits to survive in the presence of selective pressures.

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Which two of these choices are NOT examples of why humans experience less selective pressure than they did in ancient times?

a) eyeglasses

b) hair dye

c) weapons (knives, rifles, etc.)

d) houses and buildings

e) domestication of plants and animals

f) chairs

2. Why does selective pressure have to be there before an organism reproduces in order for evolution to occur?

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About This Quiz & Worksheet

This quiz and attached worksheet will help gauge your understanding of selective pressure. Topics you will need to know in order to pass the quiz include traits and reproduction.

Quiz & Worksheet Goals

Use these assessment tools to measure your knowledge of:

  • How organisms evolve new traits
  • Examples of why humans experience less selective pressure than they did in ancient times
  • Identify evolutionary process of an organism with regard to selective pressure
  • Phenotypic variations that affect an organism's ability to survive
  • Immunodeficiencies and their relation to selective pressure

Skills practiced

This worksheet and quiz let you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related biology lesson
  • Critical thinking - apply relevant concepts to examine information about the immune system in a different light
  • Interpreting information - verify that you can read information regarding selective pressure and interpret it correctly

Additional Learning

To learn more, review the lesson Selective Pressure: Definition & Example, which covers the following objectives:

  • Define phenotype and evolution
  • Understand natural selection
  • Recognize effects of climate on survival
  • Identify predation and diseases
  • Understand direct human influence