Adaptations and

Extinction

Gaiser Life Science

KnowWhat qualities does a species need to promote survival?

Evidence

Page #

“I don’t know anything.” is not an acceptable answer.

Use complete sentences.

After listening to the PowerPoint lecture, come back here and list evidence to explain why your answer to the above question is or is not a good answer. You may also use other outside sources to help you respond.

There is a 10 year drought in WA state. Predict which species has the greatest chance of survival. Explain your reason. Draw a picture to support your position.

Choose 1:1. Spotted owl2. Evergreen tree3. cougar

Clarifying ?s Information

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Adaptations and Extinction

adaptations - physical and/or behavioral changes that are inherited that enhance survival and/or reproduction

3 types of adaptations

1. Behavioral - actions2. Physical - body parts that control life processes Example: gills/lungs3. Body parts and/or coloring Example: Bird’s feathers blend into the

foliage or a walking stick looks like a twig.

Example: go to the pool on a hot day

Why adapt?Example: A cactus must be able to store water in order to survive in the desert.

Do humans adapt?

Species won’t survive if they can’t adapt.

1. Too warm? Example: Wear light clothing, drink cool drinks, eat food that does not require cooking

2. Too cold? Example: Wear heavy clothing, drink hot drinks, eat hot food

extinction - a species no longer exists. This can happen to plants or animals.Examples: golden frog, great auk, dodo bird, passenger pigeon, American chestnut tree (the list goes on for pages and pages!)

How do extinctions occur?

The environment changes and the species’ adaptive skills are not sufficient for it to survive.

environmental changes

1. Over hunting/over fishing 2. Loss of habitat

3. Loss of food source 4. Natural disasterExamples: flood, fire, weather, volcanoes

Summary:

Clarifying ?s Information

Page #Summary:

Adaptations and Extinction

adaptations - physical and/or behavioral changes that are inherited that enhance survival and/or reproduction

3 types of adaptations

1. Behavioral - actions2. Physical - body parts that control life processes Example: gills/lungs3. Body parts and/or coloring Example: Bird’s feathers blend into the

foliage or a walking stick looks like a twig.

Example: go to the pool on a hot day

Why adapt?Example: A cactus must be able to store water in order to survive in the desert.

Do humans adapt?

Species won’t survive if they can’t adapt.

1. Too warm? Example: Wear light clothing, drink cool drinks, eat food that does not require cooking

2. Too cold? Example: Wear heavy clothing, drink hot drinks, eat hot food

extinction - a species no longer exists. This can happen to plants or animals.Examples: golden frog, great auk, dodo bird, passenger pigeon, American chestnut tree (the list goes on for pages and pages!)

How do extinctions occur?

The environment changes and the species’ adaptive skills are not sufficient for it to survive.

environmental changes

1. Over hunting/over fishing 2. Loss of habitat

3. Loss of food source 4. Natural disasterExamples: flood, fire, weather, volcanoes

This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture notes. All pictures came from Google Image Search. To fall within the Fair notes. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the classroom and may not be published back onto the Internet unless the

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