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