Ecosystems Quizizz for Presentation #2

Why would a classroom with more students be worse for a flu outbreak?

• It has the smallest number of students.

• It has the greatest population density.

• It is the first class of the day.

• It is the last class of the day.

Which of the following is a density-independent factor?

• Competition for food

• Predation

• Temperature

• Disease

Which of the following is NOT a density-independent factor?

• Storms

• Floods

• Drought

• Food availability

What type of factor is a storm in terms of population impact?

• Density-dependent

• Density-independent

• Biotic

• Symbiotic

Tags

NGSS.MS-LS2-4

What does competition depend on in an ecosystem?

• Weather conditions

• Density of the population

• Time of year

• Type of species

Tags

NGSS.MS-LS2-1

Which of the following is a type of terrestrial ecosystem?

• Ocean

• River

• Desert

• Lake

What type of water is associated with marine ecosystems?

• Freshwater

• Saltwater

• Rainwater

• Groundwater

Which of the following best describes the flow of energy in ecosystems?

• Energy flows from decomposers to producers

• Energy flows from producers to consumers

• Energy flows from consumers to decomposers

• Energy flows from consumers to producers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do some animals eat according to the text?

• Only plants

• Only decomposers

• Some eat producers, some eat other consumers

• Only autotrophs

Tags

NGSS.MS-LS2-3

What is the main role of decomposers in an ecosystem?

• They produce food for producers

• They feed on third-order consumers

• They break down dead organisms

• They are primary consumers

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3