Marine Life Trivia

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20 Questions
See how many you can get right

 

Question 1:
What is the largest fish in the world?
Whale shark
Sperm whale
Sailfish
Blue whale

 

Question 2:
How many tentacles does a squid have?
Four
Six
Eight
Ten

 

Question 3:
Which mollusk lacks a shell?
Amemone
Nudibranch
Squid
Sea hare

 

Question 4:
What shark can live in both freshwater and saltwater?
Blue shark
Blacktip shark
Great white shark
Bull shark

 

Question 5:
Which is not a true crab?
Horseshoe crab
Hermit crab
Frog crab
Mud shrimp

 

Question 6:
Which is not a jellyfish?
Portuguese man o war
Sea walnut
Stinging nettle
Sea wasp

 

Question 7:
What is the fastest fish in the world?
Wahoo
Sailfish
Mako shark
Yellowfin tuna

 

Question 8:
The exoskeleton of a crab is made primarily of what material?
Sclerotin
Keratin
Chitin
Concrete

 

Question 9:
What is the tail fin of a fish called?
Dorsal fin
Caudal fin
Anal fin
Pectoral fin

 

Question 10:
What is a sharks skeleton made of?
Collagen
Bone tissue
Calcite
Cartilage

 

Question 11:
What are the stinging cells of a jellyfish called?
Cnidocytes
Nematocysts
Colloblasts
Cyanocysts

 

Question 12:
What part of a fish may be found in lipsticks, nail polishes and mascara?
Fin tissue
Bones
Scales
Skin

 

Question 13:
What coastal fish in Texas ascend streams, as much as 100 miles, to spawn?
Blue catfish
Tarpon
Longnose gar
Striped bass

 

Question 14:
The largest pair of a fish's ear bones (otoliths) are used by fishery scientists to study all areas of fish biology but which?
Age
Bone tissue composition
Species ID
Growth rate

 

Question 15:
What group of fishes are the seahorses closely related to?
Pipefishes
Sargassumfishes
Batfishes
Searobins

 

Question 16:
Which invertebrate can change genders?
Oyster
Blue crab
Sand dollar
Barnacle

 

Question 17:
How does a sea cucumber defend itself?
Camouflage
Hides in crevices
Throws up
Secretes ink

 

Question 18:
Which is true about octopuses?
They have 1 heart and green blood
They have 2 hearts and red blood
They have 3 hearts and blue blood
They have 4 hearts and purple blood

 

Question 19:
Which of the following is in the dolphin family?
Pygmy right whale
Humpback whale
Bowhead whale
Killer whale

 

Question 20:
What is a mass of jellyfish floating together called?
Crash
Smack
Unkindness
Murder