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