Echinodermata,hemichordata

Which of the following features is characteristic of echinoderms?

• Notochord

• Exoskeleton

• Water vascular system

• Jointed legs

Which of the following animals belongs to Echinodermata?

• Sea horse

• Starfish

• Squid

• Shark

Which of the following is a characteristic feature of Hemichordata?

• Presence of true notochord

• Absence of pharyngeal gill slits

• Proboscis, collar and trunk

• Dorsal tubular nerve cord

Which of the following is an example of Hemichordata?

• Balanoglossus

• Herdmania

• Amphioxus

• Saccoglossus

Hemichordates are:

• Acoelomate

• Pseudocoelomate

• Coelomate

• Hemocoelomate