Life Science

What is this diagram an example of?

• consumer model

• food chain

• food web

• producer model

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What does the diagram illustrate?

• an ecosystem

• an energy pyramid

• a food chain

• a food web

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is the process where producers use carbon dioxide, water, and light energy to make sugars?

• Calvin cycle

• chemosynthesis

• energy conversion

• photosynthesis

Tags

NGSS.MS-LS1-6

What process is shown in this figure?

• decay

• nitrogen fixation

• photosynthesis

• transpiration

Tags

NGSS.MS-LS1-6

Assume that each trophic level uses 90% of the energy it receives. If the first trophic level receives 100 units of energy, how much energy is available for the third trophic level?

• 1 unit

• 10 units

• 1,000 units

• 10,000 units

Tags

NGSS.MS-LS2-3

Which includes both an abiotic and a biotic factor?

• a cow eating grass

• a dog giving birth to puppies

• a lion drinking from a river

• a rock rolling down a hill

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

In the nitrogen cycle, what converts nitrogen compounds into nitrogen gas?

• animals

• bacteria

• lightning

• plants

If more greenhouse gases are released into the atmosphere, what is likely to happen?

• an increase in the amount of carbon in the soil

• an increase in the amount of nitrogen in the soil

• a decrease in average temperatures on Earth

• an increase in average temperatures on Earth

Tags

NGSS.MS-ESS3-5

What is an example of a biotic factor?

• animals

• atmosphere

• climate

• soil

Tags

NGSS.MS-LS2-4

Features of the environment that are or were once alive are called __________.

• biotic factors

• abiotic factors

• food webs

• nitrogen cycles