Life Science Review 15.1 Question Preview (ID: 19380)
Simple Invertebrates.
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Jellyfish have a body plan organized around their center so they have
a) radial symmetry
b) bilateral symmetry
c) quadrilateral symmetry
d) asymmetry
Which simple invertebrate has neither guts nor neurons?
a) a cnidarian
b) a sponge
c) a flatworm
d) a roundworm
Which of the following is a concentrated mass of neurons?
a) ganglia
b) nerve cells
c) nerve cords
d) brain
another name for a nerve cell is a
a) neuron
b) nerve cord
c) brain
d) ganglion
What is not a reason that animals have a coelom?
a) to protect the gut
b) to allow the gut to expand
c) all of the choices
d) to cushion other organs found in the coelom
Which invertebrates have stinging cells?
a) cnidarians
b) sponges
c) flatworms
d) roundworms
Which body form of cnidarians is correctly matched?
a) medusas swim through the water
b) polyps look like umbrellas
c) medusas attach to a surface
d) polyps have bilateral symmetry
Which worms have eyespots?
a) planarians
b) flukes
c) tapeworms
d) roundworms
which worms have no guts?
a) tapeworms
b) roundworms
c) flukes
d) planarians
which invertebrate has a brain?
a) roundworms
b) flatworms
c) cnidarians
d) sponges
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