Natural Selection Review | Baamboozle - Baamboozle

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Natural Selection and other things

Study Slideshow

1. Which definition best describes fitness?

Ability to run the fastest

Ability to survive and reproduce

Ability to be the strongest

20

A polar bear moves from the Artic to the desert. What selective pressure is working on it?

Climate

20

Peacocks use their feathers to attract a female. If a peacock does not have attractive feathers, what selective pressure is working against it?

Mating

20

Suddenly the food source for one type of bird disappears. What selective pressure is working against it?

Food availability

20

Look at this environment. Which trait would have the higher fitness if predation was the selective pressure?

Blue Birds

Red Birds

Green Birds

20

There are two different types of birds. Nocturnal (awake at night) and Diurnal (awake during the day). They both live in an environment where their predator is nocturnal. Which trait do you expect to survive due to natural selection?

Awesome!

25

Name the 5 different selective pressures.

Great!

25

Which selective pressure works the most on humans?

Disease

Climate

Mating

Predation

15

What does survival of the fittest mean?

Great answer!

25

Zebras suddenly lose their stripes which makes them easier to be seen. What selective pressure is working against them?

Predation

20

Why is natural selection so important?

It keeps populations in check and prevents overpopulation

25

Name 10 states in the U.S.

Awesome!

25

Stick bugs require a background to blend in. Green stick bugs live in rainforests with a lot of green plants. There is a drought that kill all the green plants and turn the plants brown. What would be an example of a BENEFICIAL mutation?

Mutation that turns stick bugs brown or the color of the new environment,

25

What does it mean if a trait has a low fitness?

It does not have a high chance to survive and reproduce.

15

What does it mean if a trait has a high fitness?

It has a high chance to survive and reproduce.

15

Give an example of climate working as a selective pressure on an organism.

Nice!

25