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WorksheetsCrustacean/Sharks
Total questions: 15
Worksheet time: 9mins
What are sharks considered in the ocean?
friends
herbivores
predators
friendly
Why is losing a tooth not a problem for a shark?
When a shark loses a tooth, another tooth takes its place.
Sharks don't get old enough to use teeth.
Sharks teeth never fall out.
Sharks die if a tooth is lost.
pumps water to gills
for hearing and balance
Electrosense
The tail fin of a shark is called the:
Pectoral fin
Dorsal fin
Caudal fin
Pelvic fin
A sharks skeleton is made of...
cartilage
bones
muscle
scales
What is the special electroreceptor organs near the shark's nose called?
Ampullae of Lorenzini
electro fields
placoid scales
nose hairs
Lobsters often have two different size claws to:
Eat, breathe
Pinch, crush
Sense, move
Crush, breathe
How can you determine the sex of a crab?
Size of its claws
Size of its antennae
Size of its abdomen
Size of its exoskeleton
What does a crustacean do to grow larger?
Attach itself to substrates
Reproduce
Molt
Use jointed appendages
Crustaceans with 10 legs:
Copepods
Decapods
Arthropods
Maxilipods
Which of the following is not a decapod?
Crab
Lobster
Shrimp
Barnacle
What crab is this?
Hermit crab
Spider crab
Mole crab
Coconut crab
Which two have the most similar external anatomy?
shrimp and crab
shrimp and lobster
krill and barnacle
copepod and crab
