Introduction
Aquatic Ecosystems
Terrestrial Ecosystems
What Do Animals Eat?
EOG Style Questions
100

The vocabulary word for this definition is made up of all of the living and nonliving things in an area.

Ecosystem

100

An area of salty water that fills enormous basins on the Earth’s surface.

Ocean

100

 Fill in the blank: __________________ forest are full of trees with wide, thin leaves

Temperate/Deciduous 

100

What feeds on animals that are already dead?

Scavenger

100

What do decomposers do in the ecosystem?

A. Decomposers return matter back to the ecosystem.

B. Decomposers provide food for plants.

C. Decomposers absorb carbon dioxide waste.

D. Decomposers create new matter for the ecosystem.

A.Decomposers return matter back to the ecosystem.

200

Fill in the Blank: Living organisms that are part of an environment are called _________ 

Biotic

200

An area where a freshwater river or stream meets the ocean. 

Estuary

200

Fill in the blank: ________________ is a dense, wet forest that receives a lot of rain and is home to a huge variety of plants and animals

Tropical Rainforest

200

When you have a fish and a bear. Which is the predator and which is the prey?

Bear= Predator

Fish= Prey

200

Which aquatic ecosystem experiences changes in salt concentration as fresh and salt waters mix?
A. estuary

B. lake

C. pond

D. stream

A. Estuary
300

The non-living factors in an environment are called ____________

Abiotic

300

A large body of water that is surrounded by land.

Lake

300

Fill in the blank: a __________ grassland grows close to the equator.

Tropical

300

Give me an example of a food chain.

Answers may vary

300

Which is a similarity of estuaries and oceans?

A. They are both very deep.

B. They are both the same size.

C. They both contain salt water.

D. They both have a few predators.


C. They both contain salt water.

400

  Fill in the blank: ______________________ ecosystems are in and around a body of water

Aquatic

400

Flowing bodies of water provide benefits to humans and are important habitats for plants and animals.

Stream

400

Fill in the blank: a __________ grassland grows in regions farther from the Equator

Temperate

400

Explain the difference between a herbivore, a carnivore, and an omnivore.

Herbivore eats ONLY plants. A carnivore eats ONLY meat. An omnivore eats everything, both plants and animals. 

400

Which type of organisms get their energy directly from the Sun?

A. Producers

B. Decomposers

C. First-level consumers

D. Second-level consumers

A. Producers

500

Fill in the Blank: _______________ecosystems are land-based ecosystems and

Terrestrial

500

Match the correct definition to each type of water.

1. Freshwater

2. Saltwater 

3. Brackish water 


a. a somewhat salty water source (more so than freshwater) but not as salty as seawater

b. water that contains salt

c. water that is not salty



1. C

2. B

3. A

500

The driest places on Earth and get fewer than 10 inches (25 centimeters) of rain a year.

Desert

500

Explain the difference between a producer, a consumer, and a decomposer.

A producer makes their own food using Photosynthesis. A consumer has to eat things for it to get its energy. A decomposer breaks down the dead, organic material. 

500

Give me an example of a temperate grassland food chain. 

Answers may vary