If people planted more trees and shrubs in their yard, what would these organisms compete for the most?

• Temperature zone

• Water and sunlight

• Shelter

• There will be no competition among these organisms

Tags

NGSS.MS-LS2-1

Which of the following is NOT an example of how biotic factors interact with abiotic factors in an ecosystem?

• A lion preys on a herd of gazelle.

• Plants remove carbon dioxide from the air and add oxygen.

• Animals cause erosion by digging in the dirt.

• A lizard raises its body temperature by using heat from the Sun.

Tags

NGSS.MS-LS2-3

A company purchased a large forest and cut the trees for lumber. Sunlight which had not reached the forest floor

before was now very bright on the bare ground. Grass began to grow rapidly because of increased access to light

and moisture.

Which population of organisms would be in DIRECT competition with the grass for the same resources?

• Spotted owls

• Squirrels

• Hawks

• Wildflowers

Tags

NGSS.MS-LS2-1

Koalas live almost entirely on leaves from eucalyptus trees and they are native exclusively to Australia.

Destruction of the Koalas’ habitat will most likely lead to -

• koalas producing more offspring.

• a decrease of the koala population.

• the koalas becoming larger.

• an increase of the koala population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Large forest fires have been common in parts of the Western United States in the past few years. The forest

ecosystem is changed by this natural disaster.

Which of the following is a result of a large forest fire?

• Wildlife populations will increase in the area.

• Wildlife populations will decrease in the area.

• New plant growth will decrease for many years.

• All new organisms will populate the area.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In Austin, Texas, a well-known salamander inhabits the waters of Barton Springs. This is the perfect habitat for

the Barton Springs salamander since it thrives in fresh and pure continuous flowing water. They may inhabit

underground or surface environments.

What is the most likely way that humans could have a damaging impact on the Barton Springs salamander?

• Polluting the water

• Floating down the river

• Adding new water vegetation

• Adding new crustaceans

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What impact do oceans have on humans?

• Humans depend on oceans for jobs, recreation, and food.

• Oceans are a major influence on weather patterns.

• Oceans are a vital component of the water cycle.

• All of the above.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Which subatomic particles are found in the nucleus of an oxygen atom?

• Neutrons and Electrons

• Electrons and Protons

• Protons and Neutrons

• Protons, Neutrons, and Electrons

Which of the following correctly describes the electrical charges of subatomic particles?

• Protons/positive; neutrons/negative; electrons/neutral

• Protons/positive; neutrons/neutral; electrons/negative

• Protons/neutral; neutrons/positive; electrons/negative

• Protons/negative; neutrons/neutral; electrons/negative

Tags

NGSS.MS-PS2-3

Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?

• negatrons

• neutrons

• protons

• electrons