When a vine grows up a tree and blocks the sunlight causing the tree to die, what is this an example of?

a biotic factor changing an environment

climate changing an environment

pollution harming an environment

Deer are herbivores that feed on the small leaves of plants. What might happen if more deer move into an area?

Small plants can become scarce, causing a decrease in the deep population.

The deer population will not change.

Deer will learn to eat mice and rabbits.

Five species of warbler (birds) eat insects and feed in spruce trees in a forest. How can these birds share the same habitat and resources?

They live in different communities.

They are members of different ecosystems.

A population of mice lives in a barn community. A cat population has just joined the community. What will happen?

mouse population goes down as cat population goes up

mouse and cat populations both go up

mouse and cat populations both go down

mouse population goes up as cat population goes down

A mushroom is growing on the stump of a dead tree. What could you infer about the role of the mushroom?

The mushroom is a decomposer, causing the stump to decay faster.

The mushroom is a producer, using the sun's energy to make its own food.

The mushroom is a decomposer, causing the stump to decay slower.

The mushroom is a herbivore, getting nutrients from the stump.

Ecosystem A was made with gravel, sand, soil, water, and seeds. Ecosystem B has DRY gravel, DRY sand, DRY soil, and seeds. There is no water. Predict what plants in Ecosystem B will look like in 4 weeks.

smaller than the plants in Ecosystem A

larger than the plants in Ecosystem A

Which of the following best describes the roles of the organisms in the food chain above?

Grass - producer, Zebras - herbivores, Lion - carnivore

Grass - producer, Zebras - herbivore - Lion - omnivore

Grass - consumer, Zebras - herbivores, Lion - carnivore

Grass - producer, Zebras - omnivores, Lion - carnivore

The diagram above shows a simple food web. What do you think would happen if the number of meat-eating fish decreased? Check all that apply.

The organisms eaten by the meat-eating fish, plant-eating fish and shrimp and crab larvae, would increase.

The number of seals and sea otters will decrease.

The number of seals and sea otters will increase.

The organisms eaten by the meat-eating fish, plant-eating fish and shrimp and crab larvae, would decrease.

Suppose many fish in the food web above died from disease. What would happen to the seal and water plant populations?

The number of seals would decrease and water plants would increase.

The number of seals and water plants would both increase.

The number of seals and water plants would both decrease.

The number of seals would increase and the water plants would decrease.

Ecosystems

Authored by Tonya Ross

Science

4th Grade

NGSS covered

Used 71+ times

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20 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of living thing can make its own food?

consumer

producer

decomposer

carnivore

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Movement of energy in a sequence is called a

ecosystem

niche

food chain

habitat

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Living and nonliving things that interact in an area

ecosystem

habitat

niche

population

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A group of the SAME kind of living thing in an ecosystem is called a

ecosystem

habitat

niche

population

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An animal that eats plants or other animals

consumer

producer

decomposer

food chain

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The role of a living thing in its habitat

food chain

habitat

niche

population

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The environment that meets the needs of living things

food chain

habitat

niche

population

Tags

NGSS.MS-LS1-5

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Ecosystems

What type of living thing can make its own food?

Movement of energy in a sequence is called a

The Living and nonliving things that interact in an area

A group of the SAME kind of living thing in an ecosystem is called a

An animal that eats plants or other animals

The role of a living thing in its habitat

The environment that meets the needs of living things

A living thing that feeds on the remains of plants and animals

During a drought, the available resources in a habitat wil

If a predator moves into an area with a large population of its prey, what will happen to the population of the prey?

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