8th Grade NC Science EOG Review 2

Why is protein an important part of a healthy diet?

• It is needed to change glucose to energy.

• It is needed to store nutrients.

• It is needed to repair tissue.

• It is needed to produce water.

Which food provides the most energy for the body in the shortest amount of time?

• potato

• meat

• milk

• fruit

A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive?

• They have larger leaves to protect the fruit than the other strawberries.

• They have different genetic variations that cause them to be more resistant to cold temperatures.

• They are able to reproduce more quickly than the other strawberries.

• The color of the strawberries is darker, and they maintain their temperature better than other strawberries.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Which would indicate that a series of fossils represent the evolution of the horse?

• All of the fossils were found in the same layers of rocks as horse fossils.

• All of the fossils are completely identical to horse bones.

• All of the fossils show similar structures to that of the modern horse.

• All of the fossils were located in the same place on Earth as horses.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?

• gene mutation

• environmental changes

• selective breeding

• decrease in reproduction

Tags

NGSS.HS-LS4-5

In a food pyramid, which best explains why the number of organisms decreases from one trophic level to the next?

• Consumers at the lower level require more energy than the top-level consumers.

• Consumers at the top level require more energy than the lower-level consumers.

• The consumers are feeding on larger organisms that have less energy.

• The consumers are feeding on smaller organisms that have less energy.

Tags

NGSS.MS-LS2-3

What is involved in creating genetically modified bacteria?

• Allowing them to reproduce freely.

• Changing their food source.

• Using biotechnology techniques.

• Growing them on selected plants.

Tags

NGSS.HS-LS1-1

How can the rate of an infectious disease be drastically reduced?

• By taking medication daily.

• By preventing transmission between people.

• By wearing clean clothing daily.

• By performing dental hygiene three times each day.

Malaria is a common disease in many countries. What is the cause of this disease?

• a virus

• a bacterium

• a fungus

• a parasite

How do scientists know that some mountains were once at the bottom of an ocean?

• Freshwater rivers flow to the ocean.

• Saltwater fish are found in some mountain streams.

• Dinosaur bones have been discovered in the mountains.

• Marine fossils have been found on the peaks of some mountains.

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3