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