Energy Flow in Ecosystems

1.

Multiple Choice

5 mins

1 pt

Which group of organisms is missing from the food web above?

Carnivore

Herbivore

Omnivore

Decomposer

2.

Multiple Choice

5 mins

1 pt

Looking at the chart below what type of organism is the Alaskan brown bear?

Carnivore

Herbivore

Omnivore

Decomposer

3.

Multiple Choice

5 mins

1 pt

Which of the following has the largest population in the Indian River Lagoon system?

Crab

Egret

Flounder

Phytoplankton

4.

Multiple Choice

5 mins

1 pt

In the Indian River Lagoon System, many organisms compete for food. Which organism in the food web competes with the egrets for food?

Clam worm

Crab

Flounder

Heron

5.

Multiple Choice

5 mins

1 pt

What is the primary source of energy for the ecosystem pictured above?

Grass and Green plants

Hawks and Deer

Tadpoles and Fish

Sun

6.

Multiple Choice

5 mins

1 pt

Which of the following is a tertiary consumer from the food web shown?

Kite

Owl

Jackal

Tree

7.

Multiple Choice

5 mins

1 pt

Which two organisms compete for the rabbit for energy?

Mouse and Tree

Owl and Goat

Wildcat and Jackal

Lion and Jackal

8.

Multiple Choice

5 mins

1 pt

In this food web, which of the following organisms eats the largest variety of different producers?

Mouse

Grasshopper

Dragonfly

Butterfly

9.

Multiple Choice

5 mins

1 pt

A student has set up an artificial ecosystem for a class project. This ecosystem has producers, first-level consumers, second-level consumers, and third-level consumers. By accident, a chemical enters the ecosystem and kills all of the first-level consumers. Which group(s) of organisms will most likely survive?

Producers

second-level consumers

second-level and third-level consumers

third-level consumers and producers

10.

Multiple Choice

30 sec

1 pt

Organisms that make their own food

Producer

Consumer

Decomposer

11.

Multiple Choice

30 sec

1 pt

Organisms that obtain energy by feeding on other organisms

Producer

Consumer

Decomposer

12.

Multiple Choice

30 sec

1 pt

Organisms that break down wastes and dead organisms and return the raw materials to the environment

Producer

Consumer

Decomposer

13.

Multiple Choice

30 sec

1 pt

Consumers that eat only plants

Carnivores

Omnivores

Herbivores

Scavengers

14.

Multiple Choice

30 sec

1 pt

Consumers that eat only animals

Carnivores

Omnivores

Herbivores

Scavengers

15.

Multiple Choice

30 sec

1 pt

Consumers that eat both plants and animals

Omnivores

Carnivores

Herbivores

Scavengers

16.

Multiple Choice

30 sec

1 pt

Consumers that feed on the bodies of dead organisms

Carnivores

Omnivores

Herbivores

Scavengers

17.

Multiple Choice

30 sec

1 pt

A food _______ is a series of events in which one organism eats another and obtains energy.

chain

web

pyramid

plate

18.

Multiple Choice

30 sec

1 pt

A food _______ consists of many overlapping food ________.

web, chains

chain, webs

pyramid, webs

web, pyramids

19.

Multiple Choice

30 sec

1 pt

As you work your way up the energy pyramid, what happens to the energy?

It increases

It decreases

It stays the same

Nothing

20.

Multiple Choice

30 sec

1 pt

In the energy pyramid, what is the bottom level composed of?

Producers

First-Level Consumers

Second-Level Consumers

Third-Level Consumers

21.

Multiple Choice

30 sec

1 pt

In the energy pyramid, what comes after the producers?

Producers

First-Level Consumers

Second-Level Consumers

Third-Level Consumers

22.

Multiple Choice

30 sec

1 pt

All energy on Earth comes from

food.

the sun.

chemicals.

non-living things.

23.

Multiple Choice

30 sec

1 pt

An autotroph can also be called a

animal.

consumer.

heterotroph.

producer.

24.

Multiple Choice

30 sec

1 pt

An example of a producer is a

fungus.

animal.

plant.

person.

25.

Multiple Choice

30 sec

1 pt

An example of a consumer is a(n)

oak tree.

dog.

algae.

phytoplankton.

26.

Multiple Choice

30 sec

1 pt

Which of the following organisms are typical decomposers?

grasses and ferns

mushrooms and bacteria

mice and deer

lions and snakes

27.

Multiple Choice

30 sec

1 pt

A diagram that shows how much energy is available at each feeding level in an ecosystem is a(n)

food chain

food web

water cycle

energy pyramid

28.

Multiple Choice

30 sec

1 pt

Producers capture energy from

sunlight

food

plants

sugar

29.

Multiple Choice

30 sec

1 pt

Consumers obtain energy by

eating other organisms

eating plants

photosynthesis

nitrogen

30.

Multiple Choice

20 sec

1 pt

How much energy is available to be passed on to the next trophic level in an ecosystem?

100%

10%

50%

75%

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