Understanding Benthos

What is the primary habitat of benthic organisms?

• The middle of a river

• The bottom of a body of water

• The shore of a lake

• The surface of the ocean

Which of the following is NOT a benthic animal?

• Dolphin

• Starfish

• Hermit crab

• Sea sponge

Sea anemones primarily feed by:

• Filtering water

• Photosynthesis

• Hunting prey

• Catching food as it floats by

Why do seagrasses grow in shallow waters?

• They need to avoid predators

• They prefer colder temperatures

• They require light for photosynthesis

• They need strong currents

How do seagrasses obtain nutrients?

• By consuming small fish

• By absorbing sunlight

• From the water surface

• Through their leaves and roots