Ocean Ecosystems Quiz

Ocean Ecosystems Quiz

Assessment

Interactive Video

Biology

5th - 6th Grade

Practice Problem

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of the Earth's surface is covered by oceans?

50%

60%

70%

80%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a biotic factor in the ocean?

Rocks

Sand

Saltwater

Fish

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of gills in fish?

To protect them from predators

To extract oxygen from water

To help them see underwater

To help them swim faster

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which plant is known for producing a significant portion of the Earth's oxygen?

Mangroves

Phytoplankton

Kelp

Seagrass

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main abiotic factor that characterizes the ocean?

Freshwater

Saltwater

High altitude

Low pressure

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which ocean habitat is often referred to as the 'rainforest of the sea'?

Mangrove forests

Kelp forests

Coral reefs

Open ocean

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unique feature do mangrove trees have?

Roots above the sand

Leaves that change color

Flowers that bloom underwater

Branches that grow in spirals

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