WorksheetsMarine Invertebrates
Total questions: 15
Worksheet time: 15mins
Sponges "eat" by moving water through the small pores and out the larger pore at the top while the "food" is transported by collar cells. This is an example of what feeding strategy?
carnivore
filter-feeding
suspension feeding
omnivore
A certain seastar feeds by pushing its stomach out and using stomach acids to dissolve the clam. Since it is feeding on another organism, what feeding strategy would this be?
omnivore
carnivore
detrivore
filter feeding
This worms body is very flat. What phylum does it belong to?
Porifera
Cnidaria
Mollusca
Platyhelminthes
An organism that lives attached to a surface or the bottom of the ocean is __________.
motile
sessile
planktonic
hydrophilic
This animal exhibits...
Bilateral Symmetry
Radial Symmetry
No Symmetry
Which phylum does an octopus belong in?
Porifer
Cnidaria
Mollusca
Arthropoda
Which phylum does this anemone belong in?
Porifer
Cnidaria
Mollusca
Arthropoda
Which phylum does this crab belong to?
Porifera
Cnidaria
Platyhelminthes
Arthropoda
This sandcastle worm uses its feeding tentacles to catch food particles suspended in the water. What is the name of this feeding strategy?
detritivore
carnivore
filter-feeding
suspension feeding
This sunflower seastar feeds by pushing its stomach out and using stomach acids to dissolve the clam. Since it is feeding on another organism, what feeding strategy would this be?
detritivore
carnivore
filter-feeding
suspension feeding
This person is holding a very small worm on their finger. This worms body is very flat. What phylum does it belong to?
Porifera
Cnidaria
Mollusca
Platyhelminthes
Which phylum does this sea star belong to?
Echinoderm
Arthropoda
Nematoda
Platyhelminthes
Which terms below describe the two body forms of cnidarians?
polyp
benthic
medusa
neritic
Which of the following marine invertebrates is known for its ability to regenerate lost body parts, such as arms?
A) Jellyfish
B) Sea Urchin
C) Starfish
D) Coral
What is the primary method of locomotion for a jellyfish in the ocean?
A) Jet propulsion
B) Cilia movement
C) Flagella rotation
D) Tentacle crawling
