In 1835 Charles Darwin visited the Galapagos Islands onboard the HMS Beagle. During his visit, he noticed that finches had small variations in their beaks. What conclusions did he reach about these variations?

What conclusion did he reach about these variations?

• The finches’ beak size and shape most likely was the result of differences in temperature across the island.

• The beak variations were the result of small adaptations over time due the type of diet.

• The differences in the size and shape of the beaks greatly affected the aerodynamics of the finches.

• The finches with different beaks likely migrated there from another region and were not directly related to the native finches.

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NGSS.MS-LS4-2

Many doctors are concerned about the overuse of antibiotics in treating bacterial infections. What is the reason for this concern?

• We will have a shortage of antibiotics when we most need them to treat a major outbreak of bacterial infections.

• Antibiotics may cause a mutation in human DNA and result in higher rates of cancer.

• Antibiotics weaken the human immune system.

• Bacteria that have a genetic tendency to resist antibiotics will be more likely to reproduce those traits in future generations.

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NGSS.MS-LS4-4

NGSS.MS-LS4-5

A squirrel population has been living in a state park mostly undisturbed over the last several years. However, a new predator has moved into the area in search of food. The graph below shows the running speed of the squirrel population and the new predator.

What do you expect to occur over the next couple of years?

• The squirrel population to the left of the predator’s speed will decrease.

• The squirrel population to the right of the predator’s speed will decrease.

• The squirrel population to the left of the predator’s speed will increase.

• The squirrel population will not change.

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NGSS.MS-LS2-4

The diagram below shows the relationship between several different species. Which two species below share the closest genetic similarities?

• Species B and Species C

• Species D and Species E

• Species F and Species G

• Species F and Species E

Tags

NGSS.MS-LS4-2

Using the diagram in Question #4, which species has the greatest genetic different with Species D?

• Species C

• Species A

• Species E

• Species G

Tags

NGSS.MS-LS4-4

Use the classification tree below to determine the unknown fish. The unknown fish below is most likely a:

• F. Bluegill

• G. Perch

• H. Rainbow Trout

• J. Catfish

Tags

NGSS.MS-LS4-2

Use the table below to identify the unknown mouse.

You discover a mouse with the following characteristics:

32 mm in length,

has hair on it tail,

ears that stick out well beyond its fur,

smooth, blended coloration.

This mouse is most likely a:

• Peromyscus leucopus

• Microtus ochrogaster

• Mus musculus

• Peromyscus maniculatus

Using the diagram in Question #7, which mouse shared the most similar DNA coding as the white-footed mouse?

• house mouse

• dear mouse

• woodland vole

• prairie vole

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NGSS.MS-LS3-1

Scientists discover a new organism in the rainforest. The new organism is known to have fur, walks on four legs, is a herbivore, stands about one meter, and males of this new species have horns. This organism is most closely related to which of the following?

• U. maritimus (polar bear)

• E. ferus (horse)

• A. cervicapra (antelope)

• C. niloticus (crocodile)

Tags

NGSS.MS-LS4-2

Two organisms are very different from one another. Organism A is an autotroph, and Organism B is a carnivore. The HIGHEST level of classification difference between these two organisms is:

• phylum

• species

• family

• kingdom