WorksheetsWorm Zoology
Total questions: 39
Worksheet time: 21mins
Name
Class
Date
1.
Which of the following is an pseudocoelomate?
a)
an organism such as Planaria (flatworms) that have no body cavity
b)
an organism such as a jellyfish with a central digestive cavity
c)
an organism such as a mammal with a body cavity lined with 2 layers of mesoderm
d)
an organism such as a Nematode (roundworm) that has a "false" body cavity
2.
Which of the following phyla contains the first acoelomate organisms with three tissue layers?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
3.
Which of the following phyla contains the first organisms with closed circulatory systems?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
4.
Which of the following phyla contains the first organisms with complete digestive systems?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
5.
Which of the following phyla contains the first organisms with pseudocoeloms?
a)
Annelida
b)
Cnidara
c)
Nematoda
d)
Platyhelminthes
6.
Which of the following phyla was the first to exhibit body segmentation?
a)
Annelida
b)
Arthropoda
c)
Cnidara
d)
Echindermata
7.
Which of the following phyla contains mostly parasitic roundworms?
a)
Annelida
b)
Cnidara
c)
Nematoda
d)
Platyhelminthes
8.
Which of the following phyla contains mostly parasitic flatworms?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
9.
Which of the following phyla contains worms with segmented bodies?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
10.
Which of the following phyla includes tapeworms, liver flukes, and planarians?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
11.
What is an Acoelmate?
a)
Animal with false body cavity
b)
Animal lacking body cavity
c)
Animal with true body cavity
d)
Animal with cavities in its teeth
12.
Which of the following phyla includes earthworms, leeches, and polychaetes?
a)
Annelida
b)
Cnidaria
c)
Nematoda
d)
Platyhelminthes
13.
What class?
a)
Class Cestoda
b)
Class Trematoda
c)
Class Turbellaria
d)
Class Monogenea
14.
What class?
a)
Class Cestoda
b)
Class Trematoda
c)
Class Turbellaria
d)
Class Monogenea
15.
What class?
a)
Class Cestoda
b)
Class Trematoda
c)
Class Turbellaria
d)
Class Monogenea
16.
What class? or subclass?
a)
Oligochaeta
b)
Polychaeta
c)
Hirudinea
17.
What class? or subclass?
a)
Oligochaeta
b)
Polychaeta
c)
Hirudinea
18.
What class? or subclass?
a)
Oligochaeta
b)
Polychaeta
c)
Hirudinea
19.
What is structure A?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
20.
What is structure D?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
21.
In segmented worms, the crop, gizzard, and esophagus are all organs that work together to digest food. Together these organs make ______________.
a)
tissues
b)
specialized cells
c)
an organ system
d)
all of the above
22.
What phylum?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
d)
Echinodermata
23.
This proglottid has both male and female sex organs. They are found in which class of worms?
a)
Cestoda
b)
Trematoda
c)
Turbellaria
d)
Monogenea
24.
Earthworms breath with their ___.
a)
lungs
b)
skin
c)
gills
25.
Earthworms have setae, which are like bristles that help them ___.
a)
move
b)
eat
c)
reproduce
26.
Earthworms have ___ sets of muscles that help them move.
a)
1
b)
2
c)
3
d)
4
27.
Earthworms don't have teeth to grind their food so they use another organ to do so. It is called a ___.
a)
crop
b)
gizzard
c)
intestine
d)
esophagus
28.
Earthworms eggs are laid .....
a)
in a soft shell
b)
in a cocoon
c)
in a nest for protection
d)
in a hard shell
29.
The swollen part of the worm is called the __________. It signals that the worm is an adult and is able to reproduce.
a)
gizzard
b)
crop
c)
clitellum
d)
segment
30.
Which phylum includes flatworms, planarians, and liver flukes?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
31.
Which phylum contains segmented worms like earthworms and leeches?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
32.
Which of the following is a structure associated with the nervous system?
a)
Nephridia
b)
Ganglia
c)
Flame cells
d)
Crop
33.
Which of the following is the evolutionary advancement first found in annelids?
a)
Three germ layers
b)
A complete digestive system
c)
Cephalization
d)
Coelomates (tube within a tube)
34.
Which of the following is a structure related to excretion?
a)
Ganglia
b)
Gizzard
c)
Nephridia
d)
Crop
35.
If present, which type of skeleton is found in worms?
a)
Longitudinal
b)
Circular
c)
Exoskeleton
d)
Hydrostatic
36.
Which of the following is a thickened segment of the earthworm’s body is used in reproduction?
a)
Septa
b)
Setae
c)
Clitellium
d)
Ganglia
37.
Letter I points to the ____________. Annelids are the first phyla to have a closed circulatory system and these structures.
a)
True Eyes
b)
True Ears
c)
Aortic Arches
d)
Two-Hole Digestive System
38.
The letter C points to the _________ (a thin walled structure that holds food), while D points to the ___________ (a thick walled structure that mechanically digests food).
a)
ocelli, auricles
b)
gizzard, crop
c)
crop, gizzard
d)
pharnyx, stomach
39.
Which structure on this annelid is correctly identified and is used for sexual reproduction?
a)
A mouth
b)
B segment
c)
C nephridia
d)
D clitellum
100 %
