echinoderms

the intertidal zone is a common habitat for echinoderms.

starfish are perhaps the most recognizable type of echinoderm.

scientists study echinoderms to understand marine ecosystems.

sea urchins graze on algae, impacting reef ecosystems.

echinoderms possess a unique water vascular system.

many echinoderms have radial symmetry as adults.

sea cucumbers are important detritivores in the seabed.

the diversity of echinoderms is remarkable worldwide.

echinoderm larvae are often bilaterally symmetrical.

conservation efforts are needed to protect vulnerable echinoderm populations.

brittle stars are fast-moving echinoderms with long, slender arms.