Question 1

Which of the following best describes a food web?

Accepted Answer

A network of interconnected food chains.

Answer

Only producers and primary consumers

Answer

A list of edible plants and animals

Answer

A single line of energy flow

Question 2

In a food chain, what role do producers play?

Accepted Answer

They convert sunlight into energy through photosynthesis.

Answer

They eat primary consumers

Answer

They are the top predators

Answer

They decompose dead organic matter

Question 3

What is the primary difference between a food chain and a food web?

Accepted Answer

A food chain is a linear sequence, while a food web is a complex network.

Answer

A food chain includes only plants, while a food web includes animals

Answer

A food web shows only predator-prey relationships

Answer

Food chains are always longer than food webs

Question 4

Which organism is typically at the top of a food chain?

Accepted Answer

A top predator.

Answer

A primary producer

Answer

A herbivore

Answer

A decomposer

Question 5

What role do decomposers play in an ecosystem?

Accepted Answer

They break down dead organic matter and recycle nutrients.

Answer

They consume only plants

Answer

They are the primary producers

Answer

They are found only at the top of the food chain

Question 6

In a food web, what would happen if a top predator population decreases significantly?

Accepted Answer

The population of primary consumers may increase.

Answer

The food web will have no effect

Answer

All other species will become extinct

Answer

The population of producers will die out

Question 7

Which of the following is an example of a secondary consumer?

Accepted Answer

A frog that eats insects.

Answer

A plant that photosynthesizes

Answer

A hawk that hunts mice

Answer

A rabbit that eats grass

Question 8

What is the primary source of energy in a food chain?

Accepted Answer

The sun.

Answer

Wind

Answer

Soil nutrients

Answer

Water

Question 9

Which is an example of a primary consumer?

Accepted Answer

A rabbit that eats grass.

Answer

A mushroom that decomposes dead matter

Answer

A fox that hunts rabbits

Answer

An oak tree

Question 10

What is the primary producer in a typical food chain?

Accepted Answer

Plants

Answer

Herbivores

Answer

Decomposers

Answer

Carnivores

Question 11

In a food chain, what role do herbivores play?

Accepted Answer

Primary consumers

Answer

Decomposers

Answer

Secondary consumers

Answer

Primary producers

Question 12

What is one consequence of removing a top predator from a food web?

Accepted Answer

It can lead to an overpopulation of herbivores.

Answer

It decreases the number of plants.

Answer

It increases plant diversity.

Answer

It has no impact on the ecosystem.

Question 13

What do decomposers do in a food chain?

Accepted Answer

They break down dead organisms and recycle nutrients.

Answer

They act as predators to herbivores.

Answer

They consume primary producers.

Answer

They produce energy through photosynthesis.

Question 14

What is usually the primary source of energy for all ecosystems?

Accepted Answer

The Sun

Answer

Water

Answer

Soil

Answer

Wind

Question 15

What happens to the energy as it moves up each trophic level in a food chain?

Accepted Answer

It decreases significantly.

Answer

It increases exponentially.

Answer

It remains the same.

Answer

It transforms into matter.

Question 16

Which of the following is an example of a top predator in a terrestrial food web?

Accepted Answer

A bald eagle

Answer

A grasshopper

Answer

A deer

Answer

A rabbit

Question 17

In a food web, what role do secondary consumers typically play?

Accepted Answer

They eat primary consumers.

Answer

They compete with primary producers.

Answer

They decompose dead organisms.

Answer

They produce energy directly from the sun.

Question 18

What happens to energy as it moves up the food chain?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains constant

Answer

It becomes negative

Question 19

Which type of consumer eats both plants and animals?

Accepted Answer

Omnivore

Answer

Carnivore

Answer

Decomposer

Answer

Herbivore

Question 20

What is the role of scavengers in an ecosystem?

Accepted Answer

To consume dead animals and help in decomposition

Answer

To be the top predators in the food chain

Answer

To produce energy through photosynthesis

Answer

To compete with herbivores for food

Question 21

In a food chain, what do we call organisms that break down dead organic material?

Accepted Answer

Decomposers

Answer

Herbivores

Answer

Carnivores

Answer

Producers

Question 22

What role do herbivores play in a food chain?

Accepted Answer

Primary consumers

Answer

Producers

Answer

Decomposers

Answer

Secondary consumers

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