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WorksheetsSponges & Cnidarians Assessment
Total questions: 15
Worksheet time: 14mins
Sponges belong to the phylum named __________________.
cnidaria
porifera
annelida
platyhelminthes
Which of the following is not a cnidarian?
jellyfish
coral
hydra
squid
---------- are invertebrates that have 2 different body plans - a polyp & a medusa.
flatworms
cnidarians
roundworms
sponges
How do sponges reproduce?
Asexually
Sexually
Neither
Both
What is a phylum?
a class of marine coelenterates which comprises the jellyfishes.
a mobile cell in the body of invertebrates.
a large class of sedentary marine coelenterates that includes the sea anemones and corals.
a principal taxonomic category that ranks above class and below kingdom.
What is a scyphozoa?
a form of cnidarian in which the body is shaped like an umbrella.
a class of marine coelenterates which comprises the jellyfishes.
a large class of sedentary marine coelenterates that includes the sea anemones and corals.
a mobile cell in the body of invertebrates.
What do sponges eat?
filter bacteria, protists, and small crustaceans from the water.
filter feeders
neither
all of the above
True or false: Sponges lack true tissues.
true
false
What shape is a polyp?
umbrella shape
vase shape
Which of the following statements is true?
cnidocytes are specialized cells used for defense.
cnidarians are luminescent.
nematocytes are structures inside the cnidocyte that contain stinging filaments.
all of the above
