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Worksheets28.3 Diversity Among the Spiralians
Total questions: 10
Worksheet time: 5mins
A flatworms lacks
bilateral symmetry.
a true coelom.
mesodermal tissue.
bilateral symmetry and a true coelom.
A scolex is ____________
the anterior attachment organ of a tapeworm.
the feeding organ of a fluke.
an appendage of a sandworm.
the egg of a sea star.
Rotifers have a flame cell as their excretory organ
false
true
Which one of these is not muscle layers of planarians?
inner longitudinal layer
concentric layer
Diagonal layer
outer circular layer
Excluding the scolex, the remaining body of the tapeworm is made up of a long series of units called ______.
flame cells
mastaxes
coronas
proglottids
Clam worms are not
predators
cephalized
fluid-freeders
Which one of these is an example of cephalopods?
land snail
octopus
keelback slugs
clam
Long intestine of an earthworms has a typlosole that can increases the surface for absorption
false
true
Which one of these is not true about leeches?
Able to keep blood flowing
Live in freshwater habitats
Have breeding seasons
Exhibit a variety of patterns and colours
Five pairs of muscular vessels that connects dorsal blood vessel to the ventral blood vessel are called
coelom
Hearts
setae
nephridium
