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