NC 8.L.4

Which would most likely increase the genetic variation in a population of organisms?

• increase in diseases

• decrease in diseases

• increase in mutations

• decrease in mutations

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which is the most accurate method scientists use to predict the age of Earth?

• relative dating of rock layers

• radioactive dating of rocks

• comparing the ages of different fossils

• investigating core samples from the Arctic

Tags

NGSS.HS-ESS1-6

Which is the best reason for scientists to study ice cores obtained from Earth’s ice caps?

• to evaluate potential oil drilling sites

• to study the quality of water stored in glaciers

• to determine the rate of melting in polar regions

• to study past climates by analyzing trapped gases and particles

Which is the best evidence for evolution?

• new rock layers containing fossils of simple organisms

• new rock layers containing fossils unlike existing organisms

• old rock layers containing fossils unlike existing organisms

• old rock layers containing fossils of complex organisms

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which best explains why mammals became dominant after the mass extinction of the dinosaurs?

• They had traits that helped them adapt to environmental changes.

• They were larger than dinosaurs and ate different foods.

• They lived in different areas on Earth than dinosaurs.

• They were able to hibernate for thousands of years.

Tags

NGSS.MS-LS4-4

Which demonstrates how genetic variation may result from a change in the environment where an animal lives?

• A salmon swims faster as it enters colder waters.

• A snake increases its body temperature because it moves on top of a rock in direct sunlight.

• A beetle stands out to predators because it moves among plants that have colors different than its own.

• An arctic fox changes its color over time because it migrates to an area with a different climate.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Which is the most accurate way of determining the age of a fossil?

• radioactive dating

• relative dating

• dating index fossils

• dating the rock layers above the fossil

Which allows scientists to investigate what Earth’s climate was like over the past 740,000 years?

• volcanic deposits

• fossils

• faults

• ice cores

Recent changes in species can be found in the upper layers of rock. This provides a link between which two scientific ideas?

• cell theory and the theory of evolution

• the periodic nature of the elements and cell theory

• the theory of evolution and the Law of Superposition

• the Law of Superposition and the periodic nature of the elements

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Imprints of the shells of ocean clams are often found in the rocks of the Appalachian Mountains. What do these imprint fossils MOST likely indicate?

• These mountains were once under the ocean.

• These mountains once had a more rainy climate.

• Mountain river clams evolved from ocean clams.

• Ocean clams evolved from mountain river clams.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3