Oceans

Ocean Organisms - 4.7

interaction of organisms in the ocean

Multiple Choice

Organisms in the ocean are categorized by

• what they eat.

• their colors.

• how they move.

• who eats them.

Multiple Choice

What is the name of the group of creatures who are strong swimmers, have flippers or fins that allow them to move through the water? Examples include most fish, reptiles, and mammals.

• plankton

• Sponge Bob

• benthos

• nekton

Multiple Choice

What is the name for the group of organisms who float in the water and must have the sun to produce energy through photosynthesis? These organisms are the base of the food chain.

• plankton

• benthos

• nekton

• seaweed

Multiple Choice

In this photo, who is the producer?

• The plankton

• the shrimp

• the fish

• the shark

Multiple Choice

In this photo, who is the tertiary consumer, the organism that is carnivorous?

• the seaweed

• the shark

• the fish

• the shrimp

Multiple Select

Select the two things producers provide for marine life.

• food

• entertainment

• water

• oxygen