An aquatic food chain

What is an aquatic food chain like?

LESSON 16

* There are two types of aquatic habitats, freshwater and saltwater (marine).

* The producers in marine habitats are called phytoplankton.

PAGE 48

Multiple Choice

The producers in marine habitats are called ...........

• marine

• phytoplankton

• aquatic

• none

These are tiny organisms that float in

water. They use the sunlight that penetrates the water to make their food. There are not many marine

herbivores. Some examples are mussels, oysters and green sea turtles. Manatees and dugong are the

only ocean herbivore mammals. Sharks, tuna, fish and seals are the main marine predators.

page 48

Multiple Choice

...... saltwater habitats

• marine

• penetrate

• phytoplankton

• all of them

Multiple Choice

Some aquatic mammals only live in water

• true

• false

Multiple Choice

Marine food chains only include aquatic organisms.

• true

• false

Freshwater food chains include both aquatic and land organisms.

page 48

Multiple Choice

Freshwater food chains include both ........... and land organisms.

• chains

• land

• aquatic

• freshwater

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