WorksheetsEchinoderm Notes
Total questions: 26
Worksheet time: 13mins
Name
Class
Date
1.
What does the term echinoderm mean?
a)
tube feet
b)
star shaped
c)
spiny skin
d)
stomach foot
2.
What type of symmetry do adult echinoderms exhibit?
a)
Asymmetry
b)
Pentaradial symmetry
c)
Bilateral symmetry
d)
Trilateral symmetry
3.
The larva of echinoderms have _____ symmetry.
a)
Asymmetrical
b)
Bilateral
c)
Radial
d)
None
4.
Echinoderms have an internal skeleton and a system of fluid-filled tubes called a(n)...
a)
water vascular system
b)
nervous system
c)
notochord
d)
ampulla
5.
Sea stars feed by
a)
Injecting poison that digests the prey
b)
Expelling their stomach to digest prey
c)
Chewing their prey with jaws and teeth
d)
squeezing their prey until it dies
6.
What phylum do echinoderms belong to?
a)
Cnidaria
b)
Porifiera
c)
Echinodermata
d)
Chordata
7.
Which is an example of an Asteroidea member?
a)
sea star
b)
sea cucumber
c)
sea urchin
d)
sand dollar
8.
Which is an example of an Ophiuroidea member?
a)
basket star
b)
sea lily
c)
sea cucumber
d)
sea star
9.
Tiny pincers that surround the spines that help keep foreign objects off the sea star are called ________
a)
tube feet
b)
pedicellariae
c)
madreporite
d)
ampulla
10.
Which of the following is the correct order for which water travels through the water vascular system?
a)
madreporite, stone canal, ring canal, radial canal, tube feet
b)
stone canal, madreporite, radial canal, ring canal, tube feet
c)
tube feet, radial canal, ring canal, stone canal, madreporite
d)
madreporite, radial canal, ring canal, stone canal, tube feet
11.
What echinoderm is this?
a)
sea urchin
b)
feather star
c)
brittle star
d)
sand dollar
12.
What echinoderm is this?
a)
sea lily
b)
sea urchin
c)
sea cucumber
d)
sand dollar
13.
What echinoderm is this?
a)
sand dollar
b)
sea urchin
c)
sea star
d)
brittle star
14.
The bulblike sac on the top of each tube foot is the _____
a)
ampulla
b)
pedicellariae
c)
madreporite
d)
nerve ring
15.
Which is an example of a Holothuroidea member?
a)
sea star
b)
sea cucumber
c)
sand dollar
d)
sea urchin
16.
Which is an example of an Echinoidea member?
a)
sea star
b)
sand dollar
c)
sea cucumber
d)
sea lilies
17.
What do starfish use to sense light?
a)
eyes
b)
tubefeet
c)
eye spots
d)
ampulla
18.
Sea stars often feed on...
a)
cniderians
b)
sponges
c)
cephalopods
d)
Bivalve mollusks
19.
Which of the following is the opening of a sea star's water vascular system?
a)
stone canal
b)
madreporite
c)
ring canal
d)
tube feet
20.
By what process will starfish regrow an arm torn off by a predator?
a)
Reconstructive meiosis
b)
Regeneration
c)
Tissue regenesis
d)
Mitotic restoration
21.
What type of skeleton do echinoderms have?
a)
Exoskeleton
b)
Hydrostatic skeleton
c)
Endoskeleton
d)
Mesenteric skeleton
22.
Sea stars have a brain.
a)
True
b)
False
23.
True or False: Echinoderms are hermaphroditic.
a)
True
b)
False
24.
All sea stars have 5 arms
a)
true
b)
false
25.
Larval stage of a sea star
a)
tube feet
b)
madreporite
c)
bipinnaria
d)
ampulla
26.
What internal system of canals help echinoderms move and feed?
a)
gastrovascular cavity
b)
water vascular system
c)
hydrostatic skeleton
d)
cardiovascular system
100 %
