Chapter 13, section 3 Adaptation and Competition.
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Transcript of Chapter 13, section 3 Adaptation and Competition.
![Page 1: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/1.jpg)
Chapter 13, section 3Adaptation and
Competition
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Agree Disagree
1._______ ________
2._______ ________
3._______ ________
5._______ ________
4._______ ________
Natural Selection is a process that causes animals to change their looks and behaviors over time.
A niche is the role an organism plays in its environment.
Competition over resources only occurs between animals of the same species.
Plants and animals chose whether or not to adapt to their environment.
Adaptations can determine whether or not an organism survives.
![Page 3: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/3.jpg)
I. Adapting to the EnvironmentA. Natural Selection – when conditions in the environment favor certain characteristics over others
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What will happen to the population of beetles?
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Males peacocks with more visible feathers have a greater chance to attract mates and pass on their genes.
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B. Adaptation – the behaviors and traits of a species change over time.
1. Caused by natural selection
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As peacocks born with most visible feathers were able to reproduce more often, the size of feathers on peacocks grew larger from generation to generation.
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C. Niche – the role of an organism in its habitat
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II. CompetitionA. Competition – struggle between organisms over the same limited resources
![Page 17: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/17.jpg)
What will happen to the population of birds?
![Page 18: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/18.jpg)
![Page 19: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/19.jpg)
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2. Species use special adaptations to reduce competition.
Example: birds that share the same tree but adapted to nest and feed in different parts of the tree
![Page 21: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/21.jpg)
![Page 22: Chapter 13, section 3 Adaptation and Competition.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649f145503460f94c29778/html5/thumbnails/22.jpg)
Agree Disagree
1._______ ________
2._______ ________
3._______ ________
5._______ ________
4._______ ________
Natural Selection is a process that causes animals to change their looks and behaviors over time.
A niche is the role an organism plays in its environment.
Competition over resources only occurs between animals of the same species.
Plants and animals chose whether or not to adapt to their environment.
Adaptations can determine whether or not an organism survives.