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WorksheetsPhylum Mollusca Checkpoint
Total questions: 13
Worksheet time: 8mins
Mollusca means
stomach foot
soft body
two shells
head foot
True or False? Mollusks can be herbivores, carnivores, filter feeders or even parasites.
True
False
Two unique structures Mollusks may have for feeding are a __________ or a ___________.
stinging cells
radula
beak
choanocytes
For respiration (exchanging oxygen and carbon dioxide) Mollusks may use (choose all that apply)
diffusion through their skin
their shell
lungs
gills
Most Mollusks have a(n) ____________ circulatory system, while cephalopods have a(n) ________________ circulatory system.
open, closed
closed, open
The two main regions of a Mollusks body are
Visceral Mass
atrium/Spongocoel
gastrovascular cavity
head/foot region
The 3 major classes in Phylum Mollusca are
Class Gastropoda
Class Bivalvia
Class Scyphozoa
Class Cephalopoda
Class Cubozoa
Gastropoda means
stomach foot
soft body
two shells
head foot
The animals in Class Gastropoda are mostly different types of ________________ and _______________.
sponges
snails
jellyfish
slugs
Slugs have bilateral symmetry, but snails have _____________ due to the process of torsion that occurs during their development. This process puts the mantle cavity behind their head.
radial
spherical
assymetry
bilateral assymetry
True or False? Snails can be left or right "handed" with their shells.
True
False
True or False? Gastropods can smell and taste with their tentacles.
True
False
Gastropods have interesting reproduction characteristics. Which of the following statements apply to gastropods?
Many are monoecious (hermaphrodites)
Many have courting rituals (hanging from trees, love darts)
They are viviparous (have live births)
They are oviparous (lay eggs)
