AP Biology Natural Selection

The more genetic variation a population has,

the more likely it is for some individuals to

• evolve

• migrate

• survive

• mutate

Tags

NGSS.MS-LS4-4

Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• changes in genotype, but not phenotype

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Why do frogs and other organism reproduce so many eggs or offspring?

• so that their babies can have friends to play with

• the more offspring the more likely the offspring will survive

• the more offspring the less likely offspring will survive 

• the more offspring the less competition

Mutations are a change in what?

• DNA

• tRNA

• protein

• rRNA

Tags

NGSS.MS-LS3-1

What is natural selection?

• process in which helpful traits become more common over time

• a trait that helps an organism survive better

Tags

NGSS.MS-LS4-4

What is most likely to happen to moth populations in the picture shown?

• Light moths--hunted easily, dark moths--population increase

• Dark moths--hunted easily, dark moths--population increase

• Light moths--hunted easily, light moths--population increase

• Lights moths will change their color to match dark moths.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Due to pollution, a pond becomes darker over time. Which trait variation became more common?

• light fish

• dark fish

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

A species could go extinct if:

• food becomes more plentiful.

• members of the species have adaptations to enhance survival.

• the environment changes drastically and no one can adapt.

• there is less competition for resources.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

Natural selection occurs during the lifetime of a single organism.

• True

• False

What type of environment do you think this data was collected from?

• forest with primarily white-bark trees

• forest with primarily dark-bark trees

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4