Natural Selection

A physical feature or behavior that helps an organism survive in its habitat.

• adaptation

• natural selection

• selective breeding

• artificial selection

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-4

Most sharks are colored white on the underside and blue or gray on top. How does this trait help them survive?

• A white underside helps sharks blend in with the sunlight and the dark coloring helps thems blend in with the dark ocean floor.

• It doesn't help them at all.

• The color has nothing to do with their survival, their only adaptation is their jaw.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

Crickets communicate with other crickets by chirping. Crickets who cannot make a sound are less likely to find a mate and reproduce. For this reason, there are few crickets that cannot make a sound. This is an example of —

• learned behavior

• natural selection

• genetic replication

• selective breeding

Tags

NGSS.MS-LS1-4

a body part or structure that helps an organism survive

• external adaptation

• behavioral adaptation

• internal adaptation

• structural adaptation

Actions that an organism does that help it survive

• external adaptation

• behavioral adaptation

• internal adaptation

• structural adaptation

This process describes how individuals that have the best traits for their environment survive and reproduce, while individuals that are not fit for their environment die out.

• adaptations

• artificial selection

• natural selection

Tags

NGSS.MS-LS4-4

This process describes how humans choose individuals to reproduce to get offspring with more desirable trait.

• selective breeding

• natural selection

• adaptations

• Genetic Engineering

Tags

NGSS.MS-LS4-5

The beaks of birds are specifically suited to eat different types of food. Use the diagram to answer the following question. Which bird has a beak that would be best for tearing meat?

• bald eagle

• American goldfinch

• great crested flycatcher

• ruby-throated hummingbird

The rancher selects the fastest horses and has them reproduce. This is...

• natural selection

• selective breeding

Tags

NGSS.MS-LS4-5

When an organism slows its life functions for a period of time to better its chances for survival during harsh conditions

• camouflage

• migration

• mimicry

• hibernation