Echinodermata Test

Name

Mark all that are eaten by sea urchins

• algea
• barnacles
• dead fish
• mussels
• sponges

Sea stars use __ for walking

• tube feet
• groove feet
• arms

What is the science name for the hole in a sea star?

• tube feet
• central disk
• madreporite

What is the science name for the hole in a sea star?

• tube feet
• central disk
• madreporite

Which species of Echinoderms feed by standing on edge with tube feet acting like filters

• Sea stars
• sea urchin
• sand dollar
• sea cucumber

Which species of Echinoderms have 5-15 eight foot long tentacles?

• Sea stars
• sea urchin
• sand dollar
• sea cucumber

Which class is the most primitive

• Crinoidea
• Holothuroidea
• Asteroidea
• Ophiuroidea

Which class is carnivorous and nocturnal

• Crinoidea
• Holothuroidea
• Asteroidea
• Ophiuroidea

What surrounds the mouth and acts like a brain?

• tube feet
• central disk
• madreporite
• grooves
• spines