Exploring Cnidarians in Marine Life

What type of symmetry do Cnidarians exhibit?

• Bilateral symmetry

• Radial symmetry

• Asymmetry

• Spiral symmetry

What are cnidocytes?

• Cells used for photosynthesis

• Cells that help in movement

• Stinging cells used for defense and capturing prey

• Cells that store nutrients

Which of the following is a body form of Cnidarians?

• Larva

• Medusa

• Nymph

• Pupa

How do jellyfish primarily capture their food?

• By using their tentacles to filter plankton

• By using their stinging cells to paralyze prey

• By scavenging dead organisms

• By photosynthesis

Which Cnidarian is known for forming symbiotic relationships with clownfish?

• Jellyfish

• Coral

• Sea anemone

• Hydra

What structural adaptation is common in corals?

• Soft, flexible bodies

• Hard calcium carbonate skeletons

• Long, flowing tentacles

• Transparent bodies

In which habitat are coral reefs primarily found?

• Freshwater lakes

• Deep ocean trenches

• Warm, shallow ocean waters

• Arctic seas

What role do jellyfish play in marine ecosystems?

• They are primary producers

• They are top predators

• They help in nutrient cycling by preying on small fish and plankton

• They build coral reefs

How do corals obtain most of their energy?

• By capturing small fish

• Through photosynthesis by symbiotic algae

• By filtering plankton from the water

• By scavenging dead organisms

Which of the following best describes the feeding strategy of sea anemones?

• They use their tentacles to capture and paralyze prey

• They filter feed on plankton

• They photosynthesize using chlorophyll

• They scavenge for dead organisms