Life Science Review 15.1: Question Preview (ID: 19380)

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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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