WorksheetsPhyla Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda,
Total questions: 11
Worksheet time: 3hrs 45mins
Name
Class
Date
1.
What phylum do flatworms belong to?
a)
platyhemithes
b)
Annelida
c)
planarian
d)
cnidaria
2.
The phyla Porifera, Cnidaria, and Platyhelminthes all have what method of respiration in order to obtain oxygen?
a)
diffusion through a membrane/body wall
b)
gas exchange through an incomplete gut
c)
gas exchange through a specialized organ
3.
Unsegmented round worms is classified under phylum...
a)
Nematoda
b)
Cnidaria
c)
Annelida
d)
Mollusca
4.
These organisms are mollusks EXCEPT
a)
squid
b)
snail
c)
oyster
d)
Jellyfish
5.
What purpose does the eyespot have on flatworms?
a)
to sense light and dark
b)
to see shape and color of prey
c)
they don't have an eyespot
6.
What type of symmetry does this animal exhibit?
a)
Asymmetry
b)
Bilateral symmetry
c)
Radial symmetry
7.
Phylum Annelida are ...
a)
Segmented worms
b)
round worms
c)
circle worms
d)
Flatworms
8.
This mollusk is considered to be the most intelligent.
a)
Clam
b)
Octopus
c)
Snail
d)
oyster
9.
The protective covering that may cause restricted movement.
a)
Internal skeleton
b)
Exoskeleton
c)
Capsule
d)
Tympanum
10.
The internal network of fluid-filled canals in echinoderms .
a)
water incurrent
b)
excurrent siphons
c)
water vascular system
d)
water probosics
11.
This echinoderm can protect itself by ejecting its internal organs
a)
sea cucumber
b)
sea star
c)
sea urchin
d)
sea lily
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