Types of Natural Selection SW

What is the correct explanation for what is happening in this graph?

• There are a lot of average-sized beaks
• There are no beaks
• There are a lot of small beaks only
• There are a lot of small and large beaks, but not average-sized ones

Tags

NGSS.MS-LS4-4

Which of the three graphs shows disruptive selection?

• A
• B
• C

Tags

NGSS.HS-LS4-4

Which of the three graphs shows stabilizing selection?

• A
• B
• C

Tags

NGSS.HS-LS4-4

Individuals with intermediate traits are more likely to survive and reproduce

• stabilizing selection

• directional selection

• adaptive radiation

• disruptive selection

Tags

NGSS.HS-LS4-4

the selection pressure favors the extreme phenotypes, dividing the population into 2 distinct groups

• directional selection

• stabilizing selection

• geographic selection

• disruptive selection

Tags

NGSS.HS-LS4-4

individuals with alleles for an extreme type are more likely to survive and reproduce

• stabilizing selection

• directional selection

• disruptive selection

• genetic drift

Tags

NGSS.MS-LS4-4

A type of bird, called a black-bellied seed cracker, has either small beaks (better for eating soft seeds) or large beaks (better for eating hard seeds).   A tornado has damaged many of the trees growing large seeds.   

• Directional

• Disruptive

• Stablizing

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Small lizards have difficulty defending territories, but large lizards are more likely to be preyed upon by owls.  Medium lizards have a place to hide. 

• Directional

• Disruptive

• Stabilizing

Tags

NGSS.HS-LS4-4

Spotted brown-and-white butterflies blend into lichen-covered tree bark, making it difficult for predators to see them, while solid brown and solid white butterflies are easier to see and get eaten. 

• Directional

• Disruptive

• Stabilizing

Tags

NGSS.MS-LS4-4

An area has flowers that are deep, so long beak hummingbirds can get the pollen from the flower.  This area also has flowers that are shallow so short beak hummingbirds can get the pollen from the flower.  There aren’t any flowers for medium beak hummingbirds.

• Directional

• Disruptive

• Stabilizing

Tags

NGSS.MS-LS1-4

NGSS.MS-LS4-4