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Sponges & Cnidarians
Test Description: Sponges & Cnidarians
Instructions: Answer all questions to get your test result.
1) ________ are invertebrates that have 2 different body plans - a polyp & a medusa.
A
roundworms
B
flatworms
C
cnidarians
D
sponges
2) An invertebrate is an animal with
A
a backbone.
B
only sexual reproduction.
C
no backbone.
D
only asexual reproduction.
3) Which of the following is NOT a characteristic of a sponge?
A
has stinging cells
B
filters water
C
is an invertebrate
D
is a heterotroph
4) Cnidarians capture food & defend themselves by
A
budding
B
using stinging cells
C
forming a hard skeleton
D
using collar cells
5) Cnidarians are all
A
carnivores.
B
omnivores.
C
filter feeders.
D
herbivores.
6) The immature form of an animal that looks very different from the adult is called a _____.
A
spicule
B
larva
C
medusa
D
nematocyst
7) The stinging cells that all cnidarians have are called ______.
A
polyps
B
buds
C
nematocysts
D
spikes
8) Which of the following is NOT a cnidarian?
A
jellyfish
B
hydra
C
squid
D
coral
9) Sponges belong to the phylum named _______.
A
Platyhelminthes
B
Cnidaria
C
Porifera
D
Annelida
10) Budding is a form of
A
movement
B
asexual reproduction
C
larva
D
sexual reproduction
*select an answer for all questions
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