Quiz 2 - Version (AD) Ecosystems

Which is the best definition of an ecosystem?

• all the living and nonliving things in a specific area

• the living things in a specific area

• the nonliving things in a specific area

• the weather and climate in a specific area

• all the plants and animals in a specific area

Which of the following are ecosystems?

• a field

• a city

• a pond

• a bee hive

  
  

• all of the above

Answer explanation

These could all be ecosystems. They all contain both biotic and abiotic parts that interact with each other. Ecosystems can come in a wide range of sizes.

Which of the following are abiotic parts of a tundra ecosystem?

Check all that are true.

• arctic foxes

• caribou

• rocks

• tundra grass

• snow

Answer explanation

Abiotic parts of an ecosystem are the nonliving things. Rocks, snow, and frozen soil are all nonliving, which means they are abiotic.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Does the circled part of the image show a biotic or an abiotic part of an ecosystem?

• biotic

• abiotic

• There is not enough information to know.

Answer explanation

All the living things in an ecosystem make up the ecosystem’s biotic parts. Plants are living things, so they are a biotic part of this ecosystem.

Tags

NGSS.MS-LS2-4

__________ includes all the individuals of a single species in an ecosystem.

• A community

• An ecosystem

• An organism

• A population

• none of the above

Answer explanation

Populations are made up of all the individuals in a single species in an ecosystem.

What is this lizard’s habitat?

• the desert

• next to plants

• a rock

• outside

Answer explanation

An organism’s habitat is where it lives. A habitat has everything the organism needs to survive. This lizard lives in the desert.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Which of these organisms is an herbivore?

• 
• 
• 
• 

Answer explanation

Herbivores are organisms that eat plants. Moose and caterpillars get their energy from eating plants. Tigers and lizards eat other organisms for their energy.

Tags

NGSS.MS-LS2-3

Classify this snake based on how it gets its energy.

• decomposer

• producer

• carnivore

• omnivore

Answer explanation

This snake appears to be a carnivore. Carnivores get their energy by eating other animals. This snake is eating a frog.

Tags

NGSS.MS-LS2-3

Which type of organism caused this dead cow to rot and decay?

• producer

• decomposer

• consumer

• none of the above

Answer explanation

Decomposers break down waste and dead animals. They return the nutrients to the soil as they get energy from the waste.

Which organism is the predator in this picture?

• the coyote

• the pheasant

• both the coyote and the pheasant

• neither the coyote nor the pheasant

Answer explanation

A predator is an organism that eats other organisms. In this picture, the coyote is the predator and the pheasant is the prey.