Unit 2 - Understanding Systems & Nutrient Cycling

Which of the following ARE examples of ecological services? (Mark all that apply.)

• lumber for furniture production

• filtration of water through the hydrological cycle

• sequestration of carbon by forests

• soil erosion control by wild grasses

Tags

NGSS.MS-LS2-5

Which of the following is/are example(s) of open systems? Mark all that apply.

• a space station

• a river

• a forest

• a house

Tags

NGSS.MS-LS2-3

What implication does the 2nd law of thermodynamics have for biological systems?

• Systems cannot create energy because energy is neither created nor destroyed.

• Energy is unlimited because it is used & reused by living organisms.

• A constant supply of energy is necessary for maintenance of biological systems.

• With each transformation, less available energy is available to do work so older systems have less energy.

Tags

NGSS.MS-PS3-5

Which of the following statements is true?

• Most, but not all living organisms are made up of organic compounds.

• All living organisms are made up of organic compounds.

• Only some living organisms are made up of organic compounds.

• No living organisms are made up of organic compounds

What is stored in chemical bonds (and released when they are broken)?

• carbon dioxide

• oxygen

• energy

• chemicals

Tags

NGSS.HS-PS1-4

Living plants & the ocean are known as carbon sinks because...?

• they are made of carbon.

• they create carbon.

• they store carbon.

• they destroy carbon.

• due to gravity, carbon is found closer to the ground.

Tags

NGSS.MS-LS2-3

Which of the following statements is TRUE of the water cycle? MARK ALL THAT APPLY.

• Includes the processes of photosynthesis, cellular respiration & combustion.

• Weathering of rocks is an important process in this cycle.

• This cycle does not have an atmospheric component.

• Evaporation from the oceans is a critical component.

• Excess gases released by combustion put this cycle out of balance.

Tags

NGSS.MS-ESS2-4

The processes of photosynthesis & cellular respiration are similar in that they both...?

• temporarily store energy in chemical bonds.

• occur in all living organisms.

• capture energy from the sun.

• capture energy in the form of sugar.

Tags

NGSS.MS-LS1-6

Which of the following is NOT a molecule?

• DNA

• N2O

• O3

• P

Tags

NGSS.MS-PS1-1

Which of the following statements is TRUE of the carbon cycle? MARK ALL THAT APPLY.

• This cycle does not have an atmospheric component.

• Includes the processes of photosynthesis, cellular respiration & combustion.

• The primary atmospheric gas in this cycle must be fixed into a form that organisms can use.

• Excess gases released by combustion put this cycle out of balance.

• Evaporation from the oceans is a critical component.

Tags

NGSS.MS-ESS3-5

NGSS.MS-LS2-3