WorksheetsEchinoderms
Total questions: 35
Worksheet time: 23mins
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)
Everting their stomach to digest prey
c)
Chewing their prey with jaws and teeth
d)
squeezing their prey until it dies
6.
Where does fertilization occur with sea stars?
a)
internal
b)
external
7.
What phylum do echinoderms belong to?
a)
Cnidaria
b)
Porifiera
c)
Echinodermata
d)
Chordata
8.
The skeleton of echinoderms is made of
a)
Water
b)
Cartilage
c)
Calcium
d)
silica
9.
Which is an example of an Asteroidea member?
a)
sea star
b)
sea cucumber
c)
sea urchin
d)
sand dollar
10.
Which is an example of an Ophiuroidea member?
a)
basket star
b)
sea lily
c)
sea cucumber
d)
sea star
11.
Which side of the sea star is the top side?
a)
aboral surface
b)
oral surface
12.
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
13.
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
14.
What echinoderm is this?
a)
sea urchin
b)
sea lily
c)
brittle star
d)
sand dollar
15.
What echinoderm is this?
a)
sea lily
b)
sea urchin
c)
sea cucumber
d)
sand dollar
16.
What echinoderm is this?
a)
sand dollar
b)
sea urchin
c)
sea star
d)
brittle star
17.
The bulblike sac on the top of each tube foot is the _____
a)
ampulla
b)
pedicellariae
c)
madreporite
d)
nerve ring
18.
Organ in starfish that can turn itself inside out when feeding
a)
pyloric stomach
b)
madreporite
c)
cardiac stomach
d)
digestive gland
19.
The nerve that runs down each arm of a starfish is the _____
a)
nerve ring
b)
stone nerve
c)
radial nerve
d)
ampulla
20.
Which is an example of a Holothuroidea member?
a)
sea star
b)
sea cucumber
c)
sand dollar
d)
sea urchin
21.
Which is an example of an Echinoidea member?
a)
sea star
b)
sand dollar
c)
sea cucumber
d)
sea lilies
22.
all have radial symmetry
a)
univalve
b)
bivalve
c)
head-footed
d)
echinoderms
23.
What do starfish use to sense light?
a)
eyes
b)
tubefeet
c)
eye spots
d)
ampulla
24.
Sea stars often feed on...
a)
cniderians
b)
sponges
c)
cephalopods
d)
Bivalve mollusks
25.
Organ in starfish that can turn itself inside out when feeding
a)
pyloric stomach
b)
madreporite
c)
cardiac stomach
d)
digestive gland
26.
What is B?
a)
Mouth
b)
Anus
c)
Madreporite
d)
Tube foot
27.
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
28.
How do echinoderms excrete nitrogenous waste from their bodies?
a)
through diffusion
b)
through nephridia
c)
through respiratory trees
d)
through dermal gills
29.
By what process will starfish regrow an arm torn off by a predator?
a)
Reconstructive meiosis
b)
Regeneration
c)
Tissue regenesis
d)
Mitotic restoration
30.
What type of skeleton do echinoderms have?
a)
Exoskeleton
b)
Hydrostatic skeleton
c)
Endoskeleton
d)
Mesenteric skeleton
31.
# 1 is pointing to the starfish's
a)
Anus
b)
Madreporite
c)
Gonads
d)
Digestive Glands
32.
# 2 is pointing to the starfish's
a)
Anus
b)
Madreporite
c)
Gonads
d)
Digestive Glands
33.
# 3 is pointing to the starfish's
a)
Anus
b)
Madreporite
c)
Gonads
d)
Digestive Glands
34.
# 4 is pointing to the starfish's
a)
Anus
b)
Madreporite
c)
Gonads
d)
Digestive Glands
35.
# 5 is pointing to the starfish's
a)
Anus
b)
Radial Canal
c)
Gonads
d)
Digestive Glands
100 %
