Ecosystem Unit Test

According to the __________, there is a fixed amount of nitrogen on Earth.

• Baacteria

• Plants

• Fungi

• Law of Conservation of Mass

Tags

NGSS.MS-PS1-5

Nitrogen that exists in the air is fixed by _____ in root nodules.

• Law of conservation of mass

• bacteria

• plants

• fungi

Tags

NGSS.MS-LS2-3

______ then use the nitrogen to make proteins and other complex compounds.

• law of conservation of mass

• bacteria

• plants

• fungi

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

When organisms die, the nitrogen is broken down by _____ and returned to the air by bacteria.

• law of conservation of mass

• bacteria

• plants

• fungi

Tags

NGSS.MS-LS2-3

Jim is a long distance runner. After one of his workouts, drenched in sweat, he headed back to his house to eat lunch. After lunch he noticed that he was completely dry, Which if the following terms explains the part of the water cycle that Jim experienced between the end of his run and after lunch?

• evaporation

• precipitation

• condensation

• decompesition

Tags

NGSS.MS-ESS2-4

Baruch is interested in the carbon cycle. He learns that carbon enters the forest from the atmosphere by the sugar making process of_______.

• fixation

• components

• evaporation

• photosynthesis

Tags

NGSS.MS-LS1-6

What could both add and remove carbon from the atmosphere?

• car

• deer

• insect

• tree

Tags

NGSS.MS-LS2-3

Limiting factors cause the size of populations to ______ or to ______.

• stop decreasing, increase

• stay the same, decrease

• stop increasing, decrease

• increase, decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Reorder the following

• population

• organism

• ecosystem

• community

Groundhogs inhabiting a meadow environment drink water and rely on plants, including clover, for food. Which of the following terms describe both water and the clover that the groundhogs consume? Choose all that apply.

• limiting factors

• abiotic factors

• biotic factors

• ecosystem