Amplify Natural Selection Histogram

According to Amplify 1.3, a(n) _____________________ can be used to chart out the frequency of a gene variable in a population

• generation

• distribution

• evolution

• histogram

Tags

NGSS.HS-LS3-3

What happened to beak length over generations from 1960 to 2010?

• The distribution of short beaks increased.

• The distribution of long beaks increased.

• The distribution of medium beaks increased.

• The distribution of medium beaks decreased.

Tags

NGSS.MS-LS4-4

A bird species in an island ecosystem feeds primarily on large seeds. Following a hurricane, the only remaining seeds are small. How might this affect the bird population's beak size over several generations?

• Beak sizes will increase to handle larger seeds better.

• Beak sizes will decrease to handle smaller seeds more effectively.

• Beak sizes will not change; birds will find alternative food sources.

• Beak sizes will vary widely without any specific trend.

Answer explanation

Beak sizes will decrease to handle smaller seeds more effectively.

Tags

DOK Level 3: Strategic Thinking

How did the cactuses (仙人掌) evolve from 1970 to 2015?

• Medium spine size became an adaptive trait.

• Medium spine size became a non-adaptive trait.

• Small and large spine sizes became adaptive traits.

Tags

NGSS.MS-LS4-4

What change in the environment caused the evolution?

• The tree bark became gray.

• The tree bark became black.

• The tree bark became black and gray.

• The tree bark became white.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Why did the population evolve from medium to thick?

• Medium is the adaptive trait.

• Thick is the non-adaptive trait.

• The environment became more cold.

• The environment became more hot.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What happens to giraffes over generations when they are moved from the wild and placed in the nature preserve?

• Giraffe height becomes shorter.

• Giraffe height becomes taller.

• Giraffe height does not change.

• Giraffe height becomes medium.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which location has guppies (孔雀鱼) with medium spot size as the adaptive trait?

• Population in Brazil

• Population in Venezuela

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

True or false? Thick beaks are the non-adaptive trait in the population.

• True

• False

Tags

NGSS.MS-LS4-4

Tree squirrels can have different fur colors. Squirrels live in forests where foxes also live. Foxes hunt squirrels for food. Squirrels that have fur that is the same color as the trees are harder for the foxes to see and catch. The diagram below shows a population of squirrels that live in a forest. At time 1, the population had the same number of black and gray squirrels. At time 2, after many generations, there were many more black squirrels and fewer gray squirrels in the population. How did the environment change between time 1 and time 2? How did the population change?

• You cannot tell how the environment changed. With each generation, more squirrels passed on the gene for black fur to their offspring.

• There were more black trees. Squirrels with black fur are more likely to survive, so the squirrels with gray fur changed to have black fur.

• There were more black trees. Squirrels with black fur are more likely to survive, so both types of squirrels passed on the gene for black fur to their offspring.

• There were more black trees. With each generation, more squirrels with black fur survived long enough to pass on the gene for black fur to their offspring.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4