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Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.” What makes an organism “best suited” for their environment?

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Page 1: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Remember…Natural Selection is the theory of evolution that states…

“Organisms best suited for the environment are more likely to survive and reproduce.”

What makes an organism “best suited” for their environment?

Page 2: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

ADAPTATIONS

Page 3: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

TRAITS

• WHAT IS A TRAIT?

• WHAT ARE SOME TRAITS HUMANS HAVE?

. . . a characteristic

Page 4: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

WHAT TRAITS HELP THIS GIRAFFE

SURVIVE?

Page 5: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What do animals NEED to survive??

• FOOD

• WATER

• OXYGEN

Page 6: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What does a SPECIES need to survive?

• need to reproduce

• need to avoid being eaten

• need to care for and protect their young

Page 7: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What are ADAPTATIONS?

•traits that help organisms meet

their basic needs & survive in their surroundings

Page 8: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What adaptations does a SPIDER have to help him meet his needs?

Camouflage coloring, long skinny legs, able to spin a web, and sticky feet.

Page 9: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What are some adaptations a WOODPECKER

has?

•Long, sturdy beak•Sharp claws•Sticky tongue•Tail•Builds a nest

Page 10: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What are some adaptations a PENGUIN has?

Fur, Webbed feet, sturdy beak, able to swim, holding breath, blubber, and coloring.

Page 11: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

There are two TYPES of adaptations…

• Affects the way an organism looks (body parts) or the way it is colored.

• Inherited, instinctive traits an organism does to survive.

Page 12: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

“I do a dance to tell my friends where to find the nectar-rich

flowers.”

What are examples of Behavioral Adaptations?

Page 13: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What is this scorpion doing?

I keep my kids with me so no other animals will eat them!

Page 14: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What am I doing to protect

myself from enemies?

How do I survive the cold winters in the US and

Canada?

Page 15: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

The Ability to Learnis a behavioral adaptation, too . . .

• Your ability to learn is an inherited behavior… your parents passed it on to you.

• What you actually learn is not inherited.

Example: Dogs have the behavioral adaptation of having “the ability to learn new tricks”.

But a dog sitting & rolling over when asked is learned, not inherited. So, they cannot pass it on to their puppies.

Page 16: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What structural adaptations does this KANGAROO

have?

Page 17: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What structural adaptations do BEAVERS have?

•Webbed feet•Flat tail•Large teeth

Page 18: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

What structural adaptations do OPOSSUMS have?

Page 19: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Colors are structural adaptations, too…

• Colors can:– Scare off enemies– Camouflage animals– Warn a predator that its poisonous

THREE TYPES:• PROTECTIVE Coloration

• WARNING Coloration

• MIMICRY

Page 20: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Animals with PROTECTIVE Coloration

Can you spot us?

Camouflaging/ blending into the environment to protect itself.

Page 21: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Animals with WARNING Coloration

I’M WARNING YOU! I DON’T TASTE GOOD!

Bright coloring used to warn predators of being poisonous.

Page 22: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Animals that use MIMICRY

What is mimicry?

Am I a butterfly or an owl?

. . . imitating another organism

Page 23: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Which snake is the venomous Eastern Coral snake?

WHY AM I SO

CLEVER?

Page 24: Remember… Natural Selection is the theory of evolution that states… “Organisms best suited for the environment are more likely to survive and reproduce.”

Quick Review

• What are adaptations?• What is the difference between structural &

behavioral adaptations?• What is mimicry?• What is warning coloration?• How do animals that use warning

coloration differ from animals that

use mimicry?


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