Microevolution Check for understanding

Match the following terms with their definitions

• A permanent change in the DNA

• Adaptation

• An inherited trait that makes and individual different

• Variation

• Any variation that makes an organism better able to survive

• Evolution

• a change in a species DNA over time because of natural selection

• Mutation

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which of the following represents genetic drift?

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• 
• 
• 

Tags

NGSS.HS-LS4-2

Which of the following represents gene flow?

• 
• 
• 
• 

Tags

NGSS.HS-LS4-2

Does evolution describe a change in an individual or a population?

• Individual

• Population

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Natural Selection is...

• selective breeding where humans decide which traits are desired

• a change in characteristics from one generation to the next

• the process where individuals with traits that make them better adapted to their environment survive and reproduce

• a trait that increases fitness

Tags

NGSS.MS-LS4-4

What is an example of natural selection?

• tortoise population that eats tall cacti develops longer necks over time

• a dog breed becomes smaller because of human demand

• a white moth is predated on a dark tree

• a population of trees is killed by a large flood

Tags

NGSS.MS-LS4-4

Founder effect and bottlenecks are two extreme cases

• genetic drift

• gene flow

Tags

NGSS.MS-LS4-4

A large herd of goats lives in a field full of poison ivy.  Some goats are able to eat the poison ivy while others have become sick when they eat it. Over time the herd as a whole will tend to

• Become more likely to eat poison ivy.
• Become less likely to eat poison ivy.
• Not change in the proportion of goats that can and can not eat poison ivy.
• Eat all the poison ivy and leave only plants all the goats can eat.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4