Amplify Natural Selection

Which statement is correct about the evolution of guppies?

• Small spot size was the adaptive trait 40 years ago.

• Medium spot size was the non-adaptive trait last year.

• Guppies evolved from large to medium spot size over time.

• Guppies evolved from medium to large spot size over time.

Tags

NGSS.MS-LS4-4

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-LS4-2

NGSS.MS-LS4-4

Which location has guppies with medium spot size as the adaptive trait?

• Population in Brazil

• Population in Venezuela

Tags

NGSS.MS-LS4-4

What changed in the environment to cause evolution?

• The water temperature increased.

• The water temperature decreased.

• The water temperature did not change.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Imagine a population of beetles with varying shell colors living in a forest with mostly dark trees and soil. Over time, what would you expect to happen to the frequency of dark-shelled beetles in the population, assuming darker colors provide better camouflage from predators?

• The frequency of dark-shelled beetles decreases.

• The frequency of dark-shelled beetles increases.

• The frequency of dark-shelled beetles remains the same.

• The shell color of the beetles changes to lighter shades.

Answer explanation

Darker colors provide better camouflage from predators, so the frequency of dark-shelled beetles would increase over time in a forest with mostly dark trees and soil.

Tags

DOK Level 3: Strategic Thinking

In a habitat where food resources are becoming scarce due to environmental changes, how might animals in this environment adapt to the increased competition for food?

• By developing faster speeds to catch prey or reach food sources quickly.

• By decreasing their metabolic rates to require less food.

• By growing larger to intimidate competitors.

• By forming symbiotic relationships with other species to share resources.

Answer explanation

By developing faster speeds to catch prey or reach food sources quickly.

Tags

DOK Level 3: Strategic Thinking

Consider a plant species that thrives in moist soil conditions. If a prolonged drought occurs, what adaptation might you expect future generations of this plant species to develop?

• Thicker leaves to store more water.

• Deeper root systems to access underground water.

• Brighter colored flowers to attract more pollinators.

• Smaller overall size to reduce water usage.

Answer explanation

Deeper root systems would help the plant access underground water during prolonged droughts, aiding in its survival and adaptation to the dry conditions.

Tags

DOK Level 3: Strategic Thinking

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

Which prediction supports the following statement? Red is the adaptive trait to survive predators.

• 
• 

Tags

NGSS.MS-LS4-4

Which location had short giraffes as the

non-adaptive trait?

• Population in Niger

• Population in Somalia

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4