NC 8.L.4

An arctic hare experiences a genetic variation that keeps its coat from changing to white for the winter season. Which element in the environment would pose the greatest threat because of this variation?

• pesticides

• predators

• pollution

• prey

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which best describes what would occur in a species that has little or no genetic variation?

• The rate of species survival would increase over time.

• The rate of species survival would decrease over time.

• Most of the offspring would survive, but the gene pool would be weakened.

• Most of the offspring would survive, and the gene pool would be strengthened.

Tags

NGSS.MS-LS4-4

What advantage do hollow bones and feathers give to birds?

• It is easier for them to fly.

• It is easier for them to perch.

• It is easier for them to lay eggs.

• It is easier for them to build nests.

Which bird’s beak is best adapted to get nourishment from the nectar of flowers?

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Tags

NGSS.MS-LS4-4

Which is most likely the result of genetic variation in organisms?

• Some bacteria survive when exposed to antibiotics.

• A virus wipes out an entire field of crops.

• Mothers give birth to identical twins.

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Some peacocks are born with a genetic variation that makes them completely white. How does this affect the likelihood of their survival?

• Genetic variation in the white peacock makes it stand out in a crowd as a target for potential predators, resulting in fewer white peacocks.

• Genetic variation in the white peacock makes it stand out in a crowd and scares potential predators, resulting in more white peacocks.

• Genetic variation in the white peacock makes it more attractive to mates, which will result in more white peacocks.

Tags

NGSS.MS-LS4-4

Which evidence supports the idea that life on Earth has continually evolved?

• evidence from layers of tree rings

• evidence from rock layers, fossils, and ice cores

• evidence gathered from melting glaciers

• evidence that the climate has changed over the past 100 years

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which best describes uniformitarianism?

• The time it takes for erosion to occur has changed since Earth first formed.

• The movement of the continents no longer occurs because of changes in ocean currents.

• The processes that shape the Earth continue as they have since the Earth formed.

• The formation of rock layers has slowed because humans have altered the environment.

Tags

NGSS.MS-ESS3-1

If a bat, an alligator, and a bird evolved from a common ancestor, what most likely can be concluded?

• They have similar anatomical structures.

• They live in the same part of the world.

• They are in the same biological classification.

• They are able to survive changes in their environments.

Tags

NGSS.MS-LS4-2

Which of these would most likely happen to a species that is not able to adapt to a changing environment?

• The species would become extinct over time.

• The species would develop mutated cells.

• The species would develop resistance to disease.

• The species would change the environment.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-1

NGSS.MS-LS4-4