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WorksheetsInvertebrates
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
An animal that does not have a backbone is a(n)
a)
vertebrate
b)
exoskeleton
c)
invertebrate
d)
none of these
2.
An animal that survives by living inside another organism and getting food from the organism but does not help the organism survive is a
a)
prey
b)
parasite
c)
predator
d)
person
3.
Special cells used by cnidarians to inject poison are called
a)
setae
b)
canals
c)
nematocysts
4.
Tiny, stiff hairs that help earthworms grip surfaces are called
a)
setae
b)
nematocysts
c)
canals
canal
canal
d)
segments
5.
The process of shedding and replacing an exoskeleton is called
a)
molting
b)
filtering
c)
metamorphosis
d)
nymphing
6.
The feet of echinoderms are connected to large tubes called
a)
setae
b)
nematocysts
c)
canals
canal
canal
d)
segments
7.
The process of an insect changing body form as it grows from an egg to an adult is called
a)
molting
b)
filtering
c)
metamorphosis
d)
nymphing
8.
What am I?
a)
Mollusk
b)
Annelid
c)
Arthropod
d)
Cnidarian
9.
What am I?
a)
Arthropod
b)
Cnidarian
c)
Mollusk
d)
Porifera
10.
I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.
a)
Mullosk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
11.
I am an arachnid, have four pairs of legs, and a body with two sections.
a)
Echinoderm
b)
Arthropod
c)
Annelid
d)
Porifera
12.
I have a soft-body, a hard shell, and live on land and water. What am I?
a)
Mollusk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
13.
I have a round body, which is divided into segments and a digestive tract with two openings. I am a leech. What Phyla am I in?
a)
Mollusk
b)
Echinoderm
c)
Arthropod
d)
Annelid
14.
I have a digestive cavity with one opening, and have tentacles. I am a hydra.
a)
Echinoderm
b)
Cnidarian
c)
Arthropod
d)
Mollusk
15.
Between 90-95% of all animals on earth can be classified as _____.
a)
invertebrates
b)
vertebrates
c)
reptiles
d)
mammals
16.
What type of symmetry do Arthropods have?
a)
Radial
b)
Bilateral
c)
Asymmetrical
17.
All insects have _____ legs.
a)
6
b)
8
c)
10
18.
All arthropods have segmented bodies, jointed appendages, and ________________.
a)
tails
b)
lungs
c)
wings
d)
an exoskelton
19.
A member of the phylum Nematoda, which consists of animals that have smooth skin and a long, cylindrical, and unsegmented body that tapers at both ends. Almost all are parasitic.
a)
segmented worms
b)
round worm
c)
flat worm
d)
cnidarian
20.
An aquatic invertebrate of the phylum Porifera that attaches to stones or plants and that has a porous structure and a tough, elastic skeleton.
a)
cnidarian
b)
sponge
c)
mollusk
d)
echinoderm
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