8.L.4.2

A new predator has just moved into an area with a population of rabbits. The rabbits with longer back legs have an advantage because they can run faster. Which is an example of adaptation?

• The species of rabbits will become extinct due to stress.

• The future generations of rabbits will have longer legs.

• The rabbits with the shorter back legs will learn to hide.

Tags

NGSS.MS-LS4-4

The prairie dog has many adaptions to its ecosystem. Which best explains the genetic variation in the prairie dog that provided adaptation to its ecosystem?

• exceptional vision to see a great distance on the prairie

• claws to dig tunnels for shelter from predators

• long tails to anchor themselves to trees

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

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.

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NGSS.MS-LS4-4

Throughout fossil records, many species appearing in lower layers of rock disappear in higher layers of rock. Which best explains their disappearance?

• The species became extinct.

• The species moved to another geographic location.

• The fossil remains were disrupted by an earthquake.

• Environmental conditions were not suitable for fossil formation.

Tags

NGSS.MS-LS4-1

Which term refers to the classification of organisms in an ordered system that indicates natural relationships?

• taxonomy

• tectonics

• geology

• biology

Some scientists think that all life evolved from a common ancestor. Which provides evidence that this may be true?

• analogous structures of organisms

• homologous structures of organisms

• extinction of many varieties of plant species

• existence of many varieties of bacteria species

Tags

NGSS.MS-LS4-2

Which best supports the idea of continental drift?

• Coastlines are constantly changing shape due to erosion.

• Earthquakes are frequently felt in many regions of the world.

• Glaciers currently exist in areas considered too warm for glaciers to form.

• Fossilized remains of the same plants and animals are found on different continents.

Tags

NGSS.MS-ESS2-3

Which best explains why species living in Australia are found nowhere else on Earth?

• Australia has an ecosystem different from any other area on Earth.

• Humans have genetically altered many Australian species in laboratories.

• Australian species were genetically altered after a comet hit the landmass.

• Australia separated from other continents and species there evolved independently.

Two organisms have homologous structures. Which can most likely be concluded about the two organisms?

• They are unrelated.

• They are the same organism.

• They share a common ancestor.

• They evolved in a similar environment.

Tags

NGSS.MS-LS4-2

It is possible to hypothesize how a particular group of organisms evolved by arranging fossils in a chronological sequence. Where would the oldest fossils be found?

• the deepest rock layer

• the most shallow rock layer

• the rock layer with the greatest variety of fossils

• the rock layer containing fossils with the most complex structures

Tags

NGSS.MS-LS4-1