Nevada C2 Test

Arthropods - Answer- meaning jointed footed. they posses segmented body, jointed appendages, exoskeleton, growth involving molting arthropod characteristics - Answer- three body regions(head, thorax, abdomen), three pairs of legs(restricted to the thorax), one pair of antennae, wings usually in the adult stage CRUSTACEANS - Answer- crayfish,shrimp,sow bugs,pill bugs (five to seven legs,two body regions cephalothorax and abdomen, two pairs of antennae)(arthropod class) arachnids - Answer- spiders,ticks,mites,scorpions (four pair of legs, two body regions cephalothorax and abdomen, no antennae)(arthropod class) diplopods - Answer- Millipedes(elongate, usually rounded bodies,multiple body segments around 50, two pairs of legs on most body segments)(arthropod class) Chilopods - Answer- Centipedes(elongate,flattened bodies, 14-20 body segments one pair of legs per body segment)(arthropod class) Asexual reproduction - Answer- the female an produce eggs without a male sperm. Generally eggs are laid externally (some ants,bees and aphids) instars - Answer- after eggs hatch insects grow in a series of stages by shedding (molting) its exoskeleton incomplete metamorphosis - Answer- egg nymph adult(grasshoppers,crickets earwigs true bugs,aphids) complete metamorphosis - Answer- egg larva pupa adult(butterflies,moths,beetles,flies and lacewings) complete metamorphosis pupal stage - Answer- cocoon stage. a non feeding stage when the insect turns into an adult. Usually winged cockroaches - Answer- oval, flattened, fast moving. Can be brown, reddish brown, tan or black. Chewing mouth parts, flexible antennae and a broad saddle like plate(pronotum) that partially covers the head. Adults of most have wings. Roach growth - Answer- incomplete metamorphosis. Two to three months to complete their life cycle. Eggs are in ooteca containing several dozen eggs. eggs capsules are often dropped around food sources or glued to surfaces. Some carry their ootheca during development