OPSE Natural Selection Examples

Posljednje ažuriranje about 2 years ago

24 questions

1

Biblioteka

OPSE Natural Selection Examples

Posljednje ažuriranje about 2 years ago

24 questions

1

An organism's traits are determined by its DNA

True

False

1

How many blue snakes are there in the population?

1

How many brown snakes are there in the population?

1

How many green snakes are there in the population?

1

Which color(s) of snakes are best suited for the environment grass and dirt environment?

Blue

Green

Brown

1

The blue snakes are most likely to be eaten by birds. What will happen to the blue allele (gene) in the population?

the blue allele (gene) will increase in the population

the blue allele (gene) will decrease in the population

the blue allele (gene) will stay the same

1

Using the concept of natural selection, explain why the blue snakes went extinct.

1

Due to the drought the environment is mostly brown dirt. Which color snake is "best fit" for the environment?

Brown

Green

0

1

Using the concept of natural selection explain why the population of snakes shifted to mostly brown snakes. Use the words survive and best fit in your response.

1

What happened to the allele frequency of green snakes in the population?

the amount of green alleles (genes) increased

the amount of green alleles (genes) decreased

the amount of green alleles (genes) stayed the same

1

The Owenoid fish are all different sizes. What causes the differences in the fish size?

A. magic

B. differences in the genes

C. osmosis

D. how much food the fish eats

1

What size fish is best suited for the environment?

Large fish

Medium fish

Small fish

1

How many blue snakes are there in the population?

1

How many brown snakes are there in the population?

1

How many green snakes are there in the population?

1

Which color(s) of snakes are best suited for the environment grass and dirt environment?

Blue

Green

Brown

1

Which color of snake is more likely to be seen by predators?

Blue

Green

Brown

The blue snakes are most likely to be eaten by birds. What will happen to the blue allele (gene) in the population?

the blue allele (gene) will increase in the population

the blue allele (gene) will decrease in the population

the blue allele (gene) will stay the same

1

Using the concept of natural selection, explain why the blue snakes went extinct.

1

Due to the drought the environment is mostly brown dirt. Which color snake is "best fit" for the environment?

Brown

Green

0

Make a prediction. The number of brown snakes will

increase in number

decrease in number

stay the same

1

Make a prediction. The number of green snakes will

increase in number

decrease in number

stay the same

1

Using the concept of natural selection explain why the population of snakes shifted to mostly brown snakes. Use the words survive and best fit in your response.

1

What happened to the allele frequency of green snakes in the population?

the amount of green alleles (genes) increased

the amount of green alleles (genes) decreased

the amount of green alleles (genes) stayed the same

1

If there were no birds in the area, would there be a shift in the population to mostly brown snakes?

No

Yes

1

The Owenoid fish are all different sizes. What causes the differences in the fish size?

A. magic

B. differences in the genes

C. osmosis

D. how much food the fish eats

There are no genetic variations in populations

True

False

Variations or differences in individuals are due to mutations

True

False

In natural selection the organism with the best traits survive and reproduce

True

False

Organisms with "bad" traits can change their traits in order to survive

True

False

Which color of snake is more likely to be seen by predators?

Blue

Green

Brown

Make a prediction. The number of brown snakes will

increase in number

decrease in number

stay the same

Make a prediction. The number of green snakes will

increase in number

decrease in number

stay the same

If there were no birds in the area, would there be a shift in the population to mostly brown snakes?

No

Yes

Why are the large fish not eaten by the sharks?

A. the fish are too big and sharks cannot catch them

B. the fish taste bad

C. the fish are too fast

D. the fish blend into the ocean floor

Why are the small fish not eaten by the sharks?

A. the fish are too big and sharks cannot catch them

B. the fish taste bad

C. the fish are too fast

D. the fish blend into the ocean floor

Predict what will happen to the number of medium sized fish.

will decrease in number

will increase in number

will stay the same

What type of natural selection is seen in the Oweniod fish?

Directional

Stabilizing

Disruptive