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WorksheetsSponges, cnidarians, worms and mollusks
Total questions: 25
Worksheet time: 18mins
Which type of symmetry is shown
Bilateral
Radial
Asymmetrical
No symmetry
Which is a similarity between worms and mollusks?
Some have gills
They are invertebrates
Land dwelling organisms must stay moist to survive
All of the above
The tissue that secretes the mollusk's shell
Mantle
Radula
Setae
Crop
Type of circulatory system where blood moves into open spaces around the body organs
Closed
Spacious
Open
Diffuse
Type of circulatory system where blood stays in a system of vessels
Closed
Spacious
Open
Diffuse
Tongue-like organ used by some Mollusk
Gizzard
Radula
Setae
Crop
Mollusks that have two-part shells
Gastropod
Cephalopod
Bivalve
Polychaete
Soft-bodied invertebrates with usually one or two shells
Gastropod
Cephalopod
Bivalve
Mollusk
Mollusks that usually have an internal shell and a set of arms or tentacles
Gastropod
Cephalopod
Bivalve
Polychaete
Segmented worms have what type of body plan?
Asymmetry
Bilateral Symmetry
Radial Symmetry
Spherical Symmetry
Which group of molluks are the most specialized and complex?
Gastropods
Bivalves
Cephalopods
Pseudopods
In general, earthworms benefit the environment the most how?
fertilizing the soil
returning nutrients to the soil
controlling soil contamination
as bait for fishing
A group of similar cells that perform a specific function is.................
Organ system
Organ
Tissue
Organism
Which characteristic in NOT for invertebrates
Exoskeleton
Open circulatory system
Simple nervous system
Ventral heart
Worms obtain food by two different ways. They might be a .............................. or ..........................
(a)
Which animals have one-way digestive system?
Sponges
Worms
Insects
Cnidarians
