WorksheetsEchinodermata Checkpoint
Total questions: 19
Worksheet time: 10mins
Echinodermata means...
Soft body
Stingning Cells
Pore Bearing
Spiny skin
Which of the following are echinoderms?
sea stars
jellyfish
brittle stars
sand dollars
sea cucumbers
True or false. Echinoderms have septa-radial symmetry.
True
False
Echinoderms develop their skeletons in pieces. When fully formed they have a ___________.
endoskeleton
exoskeleton
hydro-skeleton
The fused skeletal pieces of a sea urchin or sand dollar is known as a ___________.
water vascular system
test
gastrovascular cavity
visceral mass
Echinoderms have a mouth and anus separate. This means they have a _________ gut.
incomplete gut
complete gut
Which of the following are functions of the water vascular system?
locomotion
sensory
gas exchange
feeding
True or False. This is the water flow through the water vascular system... Madreporite --> Stone canal --> ring canal --> radial canals--> ampulla--> tube feet
True
False
This is the ________ side of a sea star.
visceral mass
aboral
oral
posterior
The white dot on the central disc is the
anus
madriporite
ambulacral groove
tube feet
This is the ________ side of a sea star.
visceral mass
aboral
oral
posterior
The valleys that run down the middle of each leg where the tube feet are found are known as
madriporites
ampullae
visceral masses
ambulacral grooves
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
Which class of echinoderms does this organism belong to?
Class Asteroidea
Class Chrinoidea
Class Echinoidea
Class Holothuroidea
Class Ophiuroidea
True or false. Sea stars can regenerate as long as a piece of the central disc and stem cells are present.
True
False
