Cycling of Matter in Ecosystems

What is the result of trees not taking up CO2 for photosynthesis?

• Increased oxygen production

• Decreased sugar production

• Increased CO2 levels in the air

• Decreased water vapor in the air

Tags

NGSS.MS-LS1-6

Which process in the nitrogen cycle is directly aided by lightning?

• Nitrification

• Denitrification

• Ammonification

• Fixation

What is the role of phosphorus in living organisms?

• It is primarily used as a source of energy.

• It is a key component of DNA and other life-sustaining molecules.

• It helps in the digestion of proteins.

• It regulates body temperature.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where does fallen water collect on Earth's surface?

• Mountains and hills

• Lakes, rivers, and oceans

• Underground aquifers

• Artificial reservoirs

Tags

NGSS.MS-ESS2-4

Unlike energy, matter is ____ in ecosystems?

• destroyed

• resolved

• recycled

• replaced

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do decomposers do?

• Control overpopulation of organisms.

• Provide energy to other organisms.

• Break apart dead organisms to give nutrients back to producers.

• Eat other organims.

Tags

NGSS.MS-LS2-3

What is a community of interacting organisms and their environment called?

• Ecosystems

• Biomes

• Food Web

• System

Tags

NGSS.MS-LS2-2

What do decomposers eat?

• Living things

• Things in the ocean

• Dead matter

• Zooplankton

What are organisms that use the food energy that was created by producers called?

• Producers

• Consumers

• Decomposers

• Photoautotrophs

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Matter cycles between

• Animals and humans

• Sand and oceans

• air, soil, among plants and animals

• Clouds and the atomosphere

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3