Octopus - Quiz
A) Arthropoda B) Cephalopoda C) Pisces D) Mollusca
A) Three B) Four C) One D) Two
A) Pacific Ocean B) Atlantic Ocean C) Indian Ocean D) Arctic Ocean
A) Carotene B) Chromatophores C) Melanin D) Hemoglobin
A) Six B) Eight C) Ten D) Twelve
A) Through a snorkel-like tube B) Through gills C) Through lungs D) Through skin
A) Giant Pacific octopus B) Veined octopus C) Dumbo octopus D) Blue ringed octopus
A) Giant Pacific octopus B) Veined octopus C) Blue ringed octopus D) Dumbo octopus
A) Cephalopodidae B) Arthropoda C) Mollusca D) Octopoda
A) About 50 species B) Exactly 500 species C) Some 300 species D) Over 1000 species
A) Bilaterally symmetric B) Radially symmetric C) Spherically symmetric D) Asymmetric
A) Their tentacles B) Their beak C) Their mantle D) The siphon
A) They become senescent and die B) They start caring for the eggs C) They migrate to a different habitat D) They continue to live for many years
A) It cures diseases B) It can make humans invisible C) It is deadly to humans D) It is harmless to humans
A) Cerberus B) Pegasus C) Medusa D) The kraken
A) Woodblock prints B) Shunga erotic art C) Pottery D) Calligraphy
A) Toilers of the Sea B) The Man Who Laughs C) The Hunchback of Notre-Dame D) Les Misérables
A) Flying away B) Expelling ink C) Building nests D) Singing loudly
A) Octo B) Octopi C) Octopuses D) Octopodes
A) Camouflage and deceit B) Fireworks C) Electric shocks D) Sound waves
A) A specially-adapted arm B) The beak C) The siphon D) The mantle
A) They care for the eggs until they hatch and then die B) They migrate to a new habitat C) They abandon the eggs D) They eat the eggs
A) Their eyes B) Their tentacles C) Their siphon D) Their beak
A) 10–50 kg (22–110 lb) B) 70–100 kg (154–220 lb) C) 5–20 kg (11–44 lb) D) 30–60 kg (66–132 lb)
A) Head B) Funnel C) Mantle D) Arm
A) Four pairs B) Six pairs C) Two pairs D) Eight pairs
A) Cells in the fibrous dermis B) Muscles in the mantle C) Suckers on the arms D) Cartilaginous capsules
A) Pressure changes in the mantle B) Muscle contractions in the suckers C) Chemical secretions D) Nerve impulses from the brain
A) Cirrina B) Octopus wolfi C) Haliphron atlanticus D) Giant Pacific octopus
A) Detects sound waves B) Produces light C) Screens incident light in bright conditions D) Changes color for camouflage
A) Silica B) Cartilage C) Collagen D) Bone
A) Open B) Closed C) None D) Semi-closed
A) Hemoglobin B) Myoglobin C) Cytochrome c D) Haemocyanin
A) Yellow B) Green C) Red D) Bluish
A) Kröger et al., 2011 B) Ibáñez et al., 2020 C) Sanchez et al., 2018 D) Fuchs et al., 2019
A) United States B) France C) Germany D) Italy
A) Pterygota B) Cirrates C) Decapods D) Incirrates
A) Hawaiian day octopus B) Spoon-armed octopus C) Vulcanoctopus hydrothermalis D) Common octopus
A) Coral reefs B) Seagrass beds C) Hydrothermal vents D) Fresh water
A) Aristotle B) Japetus Steenstrup C) Heinrich Müller D) Georges Cuvier
A) Classical conditioning B) Social learning C) Observational learning D) Operant conditioning
A) Fungus Vibrio lentus B) Gram-positive bacterium Vibrio lentus C) Protozoan Vibrio lentus D) Gram-negative bacterium Vibrio lentus
A) Giant Pacific octopuses B) Common octopuses C) Blue-ringed octopuses D) Cirrate octopuses
A) Helicase enzymes B) ADAR enzymes C) DNA ligase enzymes D) RNA polymerase enzymes
A) Carotene B) Melanin C) Hemoglobin D) Chlorophyll
A) Aggregata B) Vibrio C) Cirrina D) Dicyemidae
A) Argonauts B) Common octopus C) Vulcanoctopus hydrothermalis D) Spoon-armed octopus
A) 65% B) Around 41% C) 33% D) 3%
A) Minoan civilization B) Maya Civilization C) Ancient Egypt D) Roman Empire
A) Senescence B) Reproduction C) Juvenile stage D) Maturity
A) Three B) Four C) One D) Two
A) Nihon Shoki B) Taishokan C) Genji Monogatari D) Kojiki
A) Circular muscles B) Branchial hearts C) Radial muscles D) Flapper valves
A) Calcium carbonate B) Chitin C) Silica D) Protein
A) Jaws B) Gravity's Rainbow (1973) C) Twenty Thousand Leagues Under the Sea D) Moby Dick
A) Blood B) Ammonia C) Fluid D) Urine
A) Camouflage to blend into surroundings B) Changing texture of the skin C) Ejecting ink as a defense mechanism D) Conspicuous warning coloration
A) Beak B) Hectocotylus C) Funnel D) Tentacles
A) Octopus vulgaris. B) Sepia officinalis. C) Grimpoteuthis. D) Enteroctopus dofleini.
A) They disappear completely B) They change color to blend in with surroundings C) The muscular skin folds contract, revealing the iridescent warning D) They expand and become more visible
A) The embryo splits into two B) The mantle develops C) The shell gland forms D) The germinal disc surrounds the yolk, forming a yolk sac
A) Changing color to blend with sand B) Building complex shelters C) Mimicking other, more dangerous animals D) Emitting bioluminescent light
A) The crop B) The buccal mass C) The caecum D) The stomach
A) Seven months B) One month C) Five months (160 days) D) Two months
A) Yes B) Only if connected to the mantle cavity C) Only if connected to the brain D) No
A) Square B) Round C) U, W, or dumbbell-shaped D) Triangular
A) Is lower than the energy used at rest B) Nearly matches the energy used at rest C) Is negligible compared to resting energy use D) Is higher than all other activities combined
A) 40% B) 50% C) 80% D) 66%
A) Extensive connective tissue lattices B) Muscle fibers C) Cartilage supports D) Bony frameworks
A) Strychnine B) Curare C) Cyanide D) Tetrodotoxin
A) Cylindrical B) Spherical C) Flat disc D) Cornucopia-shaped
A) Charles Darwin B) Carl Linnaeus C) Gregor Mendel D) William Elford Leach
A) No B) Yes, but only in their brains C) Only during mating displays D) Yes, like many other animals
A) Shallow estuarine waters B) Temperate coastal waters C) Colder waters, such as those off Alaska D) Warmer tropical waters
A) It has no gill hearts. B) Its blood pressure drops. C) The systemic heart becomes inactive. D) It uses more oxygen.
A) Eight B) One C) Four D) Two
A) Germany B) France C) United Kingdom D) Italy
A) Camouflaging into the environment B) Changing color to communicate C) Bluffing a threatening appearance D) Ejecting ink as a defense mechanism
A) The optic glands B) Lack of food C) Predator presence D) Temperature changes
A) Spoon-armed octopus B) Abdopus aculeatus C) Vulcanoctopus hydrothermalis D) Hawaiian day octopus
A) The caecum B) The crop C) The stomach D) The intestine
A) Vibrio B) Aggregata C) Dicyemidae D) Cephalopoda
A) Coral reefs B) Pelagic waters C) Shallow tide pools D) Deep ocean trenches
A) Trawling B) Hooking C) Trapping D) Pots
A) Near the beak B) In the mantle cavity C) Under the digestive gland D) Attached to the optic gland |
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