Outcome S.7.2.4 Review

_______ are unique traits developed by organisms to help them survive, thrive, and reproduce in their particular environment.

• cells

• mutations

• chromosomes

• adaptations

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Natural selection is defined as

• the changes in the characteristics within a population that lead to survival.

• the process by which humans select the most desirable organisms in a population.

• the changes that occur in a population that do not affect survival.

Tags

NGSS.MS-LS4-4

Natural selection is defined as

• the changes in the characteristics within a population that lead to survival.

• the process by which humans select the most desirable organisms in a population.

• the changes that occur in a population that do not affect survival.

How long does it take for a species to change?

• A few years

• Hours

• A very long time

• A month or two

Which of the following is an example of natural selection?

• Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night.

• Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.

• Rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive.

Tags

NGSS.MS-LS4-4

Bats have the ability of echolocation which helps them navigate and hunt.  This is an example of --

• mutation
• disease
• adaptation
• selection

Zebra's stripes help protect them from their

• prey
• parents
• zookeepers
• predators

Hedgehogs, squirrels, and groundhogs, all have brown fur that helps them hide. Where do you think they live?

• They live in the ocean.
• They live in tan buildings.
• They live in the forest close to the brown ground and trees.
• The live on white icebergs.

Animals use camoflauge because..

• to hunt or hide
• for fun
• to sleep

This is an example of what camoflauge?

• mimicry
• blending
• costume
• color changing