A) Arachnida B) Diplopoda C) Insecta D) Malacostraca
A) Barnacle B) Shrimp C) Crayfish D) Lobster
A) Exoskeleton B) Shellac C) Carapace D) Endoskeleton
A) Blue crab B) Coconut crab C) Japanese spider crab D) Dungeness crab
A) Reproduction B) Molting C) Hibernation D) Camouflage
A) Pistol shrimp B) Alaskan king crab C) Ghost shrimp D) Rock crab
A) Scaphognathite B) Uropods C) Chelipeds D) Pereopods
A) Crayfish B) King crab C) Shrimp D) Lobster
A) Dungeness crab B) Horseshoe crab C) Coconut crab D) Snow crab
A) Swimmerets B) Maxillipeds C) Uropods D) Chelipeds
A) 6 B) 10 C) 4 D) 8
A) Arachnology B) Malacology C) Carcinology D) Entomology
A) Primates B) Decapoda C) Artiodactyla D) Carnivora
A) Ghost shrimp B) Rock crab C) Pistol shrimp D) Mantis shrimp
A) Plankton B) Small fish C) Detritus D) Algae
A) Wolf B) Fox C) Crawfish D) Bear
A) Animals with multiple legs B) Invertebrates without exoskeletons C) Those with shells or crusted ones D) Small aquatic animals
A) Order Araneae B) Subphylum Crustacea C) Phylum Annelida D) Class Insecta
A) Chelicerata B) Pancrustacea C) Arachnida D) Mandibulata
A) Branchiopoda B) Cephalocarida C) Oligostracans D) Remipedia
A) Giant freshwater prawn B) Stygotantulus stocki C) Japanese spider crab D) American lobster
A) Moulting process B) Segmented body C) Exoskeleton D) Biramous limbs
A) Coelom B) Mesentery C) Haemocoel D) Peritoneum
A) Myoglobin B) Haemocyanin C) Hemoglobin D) Cytochrome c
A) Excreting waste B) Oxygenating blood C) Grinding food D) Absorbing nutrients
A) Near the dorsum B) At the base of the antennae C) In the abdomen D) Within the cephalothorax
A) All appendages in all classes B) First pair of antennae only C) No appendages D) Second pair of antennae and other limbs except the first pair
A) Mouthparts for feeding B) Antennae for sensing C) Legs for walking D) Abdominal appendages
A) Aerial B) Terrestrial only C) Desert D) Aquatic
A) Terrestrial crabs B) Coral reef fish C) Deep-sea shrimp D) Marine lobsters
A) Woodlice B) Krill C) Peracarids D) Crustacean lice
A) Budding B) Sexual reproduction C) Spore formation D) Binary fission
A) Cephalocarida B) Eriocheir sinensis C) Hemigrapsus sanguineus D) T. californicus
A) Viable eggs are produced by a female without fertilization by a male. B) Males and females switch roles during reproduction. C) Eggs are fertilized externally in the water. D) Crustaceans reproduce through fragmentation.
A) Between thoracic limbs B) Attached to the pleopods C) In external ovisacs D) In thin-walled sacs
A) Copepods B) Female Branchiura C) Anostracans D) Peracarids
A) They change sex during their life. B) They have external fertilization in open water. C) They reproduce only through parthenogenesis. D) Some are hermaphrodites.
A) They increase biodiversity. B) They improve water quality. C) They affect local ecosystems. D) They have no noticeable effect.
A) Post-larva B) Megalopa C) Nauplius D) Zoea
A) Provide camouflage against predators B) Serve as sensory organs C) Increase speed during swimming D) Assist in maintaining directional swimming
A) Chitin B) Calcium carbonate C) Protein fibers D) Isoxanthopterin
A) Microhomology-mediated end joining B) Non-homologous end joining C) Base excision repair D) Homologous recombinational repair
A) Daphnia pulex B) Homarus americanus C) Tigriopus japonicus D) Penaeus monodon
A) Guillaume Rondelet B) Morten Thrane Brünnich C) Pierre Belon D) Carl Linnaeus
A) Less than 10,000 B) Over 100,000 C) About 50,000 D) Almost 67,000
A) Ostracoda B) Branchiopoda C) Malacostraca D) Maxillopoda
A) Maxillipoda B) Branchiura C) Copepoda D) Mystacocarida
A) Malacostraca B) Branchiopoda C) Maxillopoda D) Cephalocarida
A) Triassic B) Cambrian C) Jurassic D) Carboniferous
A) Ghost shrimps B) Crabs C) Crayfishes D) Prawns
A) Carboniferous B) Triassic C) Cretaceous D) Jurassic
A) Jurassic B) Permian C) Cambrian D) Cretaceous
A) Over 60% B) About 50% C) Nearly 80% D) Under 30%
A) China B) USA C) India D) Japan
A) Tesnusocaris B) Camborygma C) Ophiomorpha D) Nurra
A) Carboniferous B) Jurassic C) Triassic D) Cretaceous
A) Leptostraca B) Canadaspidida C) Mantis shrimp D) Aeschronectida
A) Triassic B) Cretaceous C) Jurassic D) Permian: Roadian
A) Maxillopoda B) Remipedia C) Branchiopoda D) Malacostraca
A) Shrimp and prawns B) Lobsters C) Crabs D) Krill |