Unit 3 Review

Which of the following will DECREASE the amount of carbon dioxide in the atmosphere?

• Combustion of fossil fuels

• Respiration

• Photosynthesis

• Decomposition

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do animals get the carbon and nitrogen they need?

• From the air they breathe

• From the water they drink

• From the food they eat

• From the sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Gas that makes up 78% of our atmosphere.

• Oxygen

• Nitrogen

• Hydrogen

• Carbon Dioxide

The conversion of light energy, water and carbon dioxide into glucose and oxygen. 

• Photosynthesis
• Nitrogen Fixation
• The Phosphorus Cycle
• The Water Cycle

Tags

NGSS.MS-LS1-6

Photosynthesis is an important part of the ______ cycle

• Carbon

• Water

• Phosphorus

• Nitrogen

Tags

NGSS.MS-LS1-6

Decomposition is part of all cycles except _______

• the carbon cycle

• the nitrogen cycle

• the water cycle

• the phosphorus cycle

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

Primary succession occurs in an area that has:

• Has Soil

• Has No Soil

• Has Some Soil

• none of these

___ are the first organisms to colonize an area and begin the process of ecological succession.

• foundational organisms

• introductory organisms

• primary organisms

• pioneer species

What is the main difference between primary and secondary ecological succession?

• Primary begins WITHOUT soil; Secondary begins WITH soil

• Primary is the first state and secondary is the second stage

• Primary builds plant community; secondary builds animal community.

• Primary begins WITH soil; Secondary begins WITHOUT soil

Which of the following is the correct order of ecological succession?

• grass - shrubs - lichens - trees

• lichens - shrubs - grasses - trees

• lichens - grasses - shrubs - trees

• grasses - lichens - shrubs - trees