Echinodermata Quiz

Which of the following is not a characteristic of Echinodermata?

• Radial symmetry in adults

• Presence of a notochord

• Water vascular system

• Endoskeleton made of calcareous plates

What type of symmetry do echinoderms exhibit during their larval stage?

• Bilateral

• Radial

• Asymmetrical

• Spherical

Which of the following is a unique feature of echinoderms?

• Closed circulatory system

• Nephridia for excretion

• Water vascular system

• Jointed appendages

What is the function of the tube feet in echinoderms?

• Excretion

• Circulation

• Movement and feeding

• Respiration only

Which of these animals belongs to the phylum Echinodermata?

• Earthworm

• Starfish

• Snail

• Jellyfish

Echinoderms are exclusively found in:

• Freshwater

• Brackish water

• Marine environments

• Terrestrial habitats

The skeleton of echinoderms is made of:

• Chitin

• Calcium carbonate

• Silica

• Keratin

Echinoderms have which type of digestive system?

• Incomplete

• Absent

• Complete

• Diffused

What type of coelom do echinoderms possess?

• Acoelomate

• Pseudocoelomate

• Eucoelomate

• Hemocoelomate

Which of the following echinoderms has a globular body shape?

• Sea cucumber

• Sea star

• Sea urchin

• Brittle star