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WorksheetsPorifera & Cnidaria
Total questions: 15
Worksheet time: 10mins
What animals are NOT included in Phylum Cnidaria?
jellyfish
anemones
squids
corals
Sponges have these specialized cells with flagella for pumping water.
tentacles
choanocytes
spicules
amoebacytes
Match the following
Coral polyps
Anemone
Moon jelly
Sponge
Nematocyst
Hard structures unique to each sponge species, some are made of calcium carbonate, others are made of silicon dioxide:
choanocytes
spicules
spiracles
nematocysts
The opening at the top of a sponge where water comes out.
osculum
osteocyte
spicule
cnidocyte
These are known to live in both freshwater and saltwater:
Phylum Porifera
Phylum Cnidaria
The animals in this group are ALL sessile:
Phylum Porifera
Phylum Cnidaria
Animals that remain in one place and are stationary or anchored to the rocks/seafloor:
plankton
motile
sessile
larvae
Larvae of many species of animals begin as this ___________ .
phytoplankton
zooplankton
spicules
choanocytes
Organisms in Phylum Porifera and Phylum Cnidaria both feed on various plankton species.
True
False
A box jellyfish (Class Cubozoa) is in this phylum:
Porifera
Cnidaria
Polyp and medusa are the body forms of this phylum:
Porifera
Cnidaria
Match the following
medusa form
polyp form
plankton
sponge
spicules
These sponge cells have many jobs, one of which is to produce the spicules:
choanocytes
porocytes
nematocyst
amoebocytes
What marine animals are known to eat sponges and jellyfish?
blue whales
sea turtles
leopard seals
sea urchins
