1
A) Pycnogonidia B) Merostoma C) Arachnida D) Insecta 2
A) crab B) lobster C) barnacle D) crayfish 3
A) head B) abdomen C) cephalothorax D) chelicera 4
A) the poor respiratory system B) the inadequate nervous system C) the inability of their excretory system to conserve water D) the weight of a sufficiently strong exoskeleton 5
A) ocelli B) superposition eye C) photomultiplier eye D) apposition eye 6
A) niaid B) naupilus C) trochophore D) planula E) nymph 7
A) pedipalps B) maxillae C) antennae D) chelicerae E) mandibles 8
A) mites B) centipedes C) scorpions D) copepods E) horseshoe crabs 9
A) wings B) head region C) legs D) thorax region E) abdominal region 10
A) antennae B) pinchers C) mandibles D) pedipalps E) chelicerae 11
A) ecdysis B) tagmatization C) metamorphosis D) paedomorphosis E) cephalization 12
A) ecdysones B) protosones C) pheromones D) deuterosones E) none of the above 13
A) tracheoles B) ossicles C) spiracles D) telson E) trachea 14
A) crabs B) water fleas C) fairy shrimp D) beetles E) barnacles 15
A) chelicerae B) pedipalps C) mandibles D) maxillae E) telsons 16
A) ocelli B) apposition eyes C) rhabdoms D) superposition eyes E) ommatidia 17
A) book gills B) tracheae C) book lungs D) gills E) branchioles 18
A) lobsters B) mites C) horseshoe crabs D) barnacles E) millipedes 19
A) wings B) antennae C) legs D) mandibles E) chelicerae 20
A) centipede B) insect C) millipede D) crustacean E) scorpion 21
A) Ostracoda B) Cladocera C) Chilopoda D) Isopoda E) Decopoda 22
A) chrysalis B) larva C) naupilus D) pupa E) nymph 23
A) termites B) flies C) fleas D) bedbugs E) crickets 24
A) maxillae B) uropods C) pedipalps D) mandibles E) chelicerae 25
A) ommatidium B) ocellus C) rhabdom D) retina E) labyrinth 26
A) chordates B) arthropods C) annelids D) mollusks E) echinoderms 27
A) jointed appendages B) exoskeleton C) coelom D) segmented body E) All of the above are characteristic of the arthropods. 28
A) lobster B) copepod C) horseshoe crab D) barnacle E) crayfish 29
A) arachnids B) crustaceans C) insects D) millipedes E) centipedes 30
A) arachnids B) insects C) millipedes D) crustaceans E) trilobites 31
A) Insects use skin as a gas-exchange surface; blood is circulated near the skin and picks up oxygen and releases carbon dioxide. B) They have feather-like gills through which blood and water flow in a countercurrent mechanism for efficient gas exchange. C) Insects have primitive lungs, called book lungs, which are a series of internal plates that provide surfaces for exchange of gasses between the blood and air. D) Insects have tracheae that carry air deep into the body where exchange occurs directly with the tissues. E) They have book gills which are modifications of the exoskeleton into a series of leaflike plates that serve as a surface for gas exchange. 32
A) earthworms B) crayfish C) spiders D) butterflies E) both a and c 33
A) True B) False 34
A) True B) False 35
A) True B) False
2002 McGraw-Hill Higher Education