How do bacteria, or decomposers, help the ecosystem?

It doesn't help them, it kills them

What are the different levels of a food web?

Decomposer, Producer, Herbivore, Carnivore, Omnivore

Producers, Herbivore, Carnivore, Decomposer

Producers, Omnivore, Carnivore, Decomposer

What is an ecosystem?

all the living and nonliving things that share an environment

the pattern of weather that affects an area

all the living things in a forest or desert

a network of food chains in an ecosystem

a web created by a spider to trap its food

a community of plants and animals

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants?

By returning nutrients to the soil

By releasing oxygen into the air

By making space for new animals

By decreasing the population of herbivores

An ecosystem is made up of all the ___________ and _____________ factors in an area.

Limiting Factor/ Carrying Capacity

Which best describes why many kinds of plants and animals can live together in an ecosystem?

The plants and animals are all part of a food chain and depend on each other to live.

The plants and animals all care for each other and protect one another.

The plants and animals are independent of one another, so they can live together.

Which would most likely increase the number of squirrels living in an area?

reducing the number of animals that hunt and kill squirrels

cutting down trees that serve as habitats for squirrels

planting trees that produce nuts squirrels do not eat

Jake goes fishing and notices a sign saying that he must release all the fish back into the water after he catches them. Which explains how this would most likely benefit the ecosystem?

It helps to maintain a balanced food chain.

It supplies more food for aquatic life living in the lake.

It keeps fish available for when Alex goes fishing.

Which will most likely happen to the grasshopper population if the grass population decreases?

The grasshopper population will decrease because there will be less food available.

The grasshopper population will increase because there will be less competition.

People will come in and make chocolate covered grasshoppers.

Ecosystems and Food Webs

Authored by Jackie Mulkey

Science

5th Grade

NGSS covered

Used 48+ times

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100 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

All energy on Earth ultimately comes from what source?

Water

Sun

Consumers

Oxygen

Tags

NGSS.5-PS3-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The arrows in a food chain or web represents what?

They point to the organism that is being eaten.

It shows how sunlight flows within an ecosystem.

They show what direction the energy is flowing between organisms.

They represent how water is transferred within a habitat.

Tags

NGSS.5-LS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An organism that uses sunlight to create its own food is known as a:

Producer

Heterotroph

Consumer

Decomposer

Tags

NGSS.5-LS1-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Why might an organism have more than one arrow coming from them in a food web?

More than one organism may eat them.

They may eat more than one other organism.

This organism gets its energy from multiple sources.

They have no resources available to them.

Tags

NGSS.5-LS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

This organism recycles nutrients back into the soil when it breaks down dead stuff

producers

consumers

decomposers

Tags

NGSS.5-LS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Earthworms help break down plant and animal remains and return the nutrients back into the soil. What are earthworms?

consumers

decomposers

producers

predators

Tags

NGSS.5-LS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which organism is the producer?

small fish

penguin

algae/seaweed

killer whale

Tags

NGSS.5-LS2-1

NGSS.5-LS1-1

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Ecosystems and Food Webs

All energy on Earth ultimately comes from what source?

The arrows in a food chain or web represents what?

An organism that uses sunlight to create its own food is known as a:

Why might an organism have more than one arrow coming from them in a food web?

This organism recycles nutrients back into the soil when it breaks down dead stuff

Earthworms help break down plant and animal remains and return the nutrients back into the soil. What are earthworms?

Which organism is the producer?

An organism that lives by breaking apart dead organic matter into simpler parts is...

What is this called?

A group of organisms of the same species living in the same area are called a/an ________.

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