PCA Exam- Insects Questions With 100% Correct Answers

PCA Exam- Insects Questions With 100% Correct Answers Invertebrates - answeranimals without backbones What creatures are invertebrates? - answernematodes, snails, slugs, arthopods Arthropods - answerjointed foot with external skeleton and jointed body parts Examples of arthopods - answerinsects, spiders, ticks, mites, crab, crayfish, shrimp, lobsters, centipedes, millipedes, scorpions, sowbugs How they infect humans - answerparasites on livestock, poultry, and human beings invading internal tissues Herbivores - answerinvertebrates are herbivores and feed on growing plants Venomous spiders - answercontrol harmful insects and other arthropods Beneficial athropods - answerarthropods that attack, paratize, or serve as pollinators Methmorphosis - answercaterpillars turn into moths or butterflies Problem with immatures - answerusually the ones damaging the plants or products Insect body parts - answerhead, thorax, abdomen Insect head - answereyes and one pair of antennae, several pairs of appendages Insect thorax - answer3 pairs of legs, one or two pairs of wings Insect abdomen - answersegmented, folded wings partially or completely cover abdomen Insect appendages - answertip of abdomen, pinchers, stingers Spider body parts - answerhead and thorax combine to cephalothorax Spider cephalothorax - answerfour pairs of legs, eyes, mouthparts, and fangs (chelicerae) Spider abdomen - answernonsegmented abdomen, several pairs of spinnerets Tick and Mite body parts - answerhead (gnathosoma) and combined thorax and abdomen (idiosoma); webbing from silk like glands located near mouth Indiosoma parts - answerfour pairs of legs, three in immatures Instar - answerperiod between one molt and the next; several instars before becoming an adult Complete metamorphasis - answermajor morphological stages and adulthood within nonfeeding pupals; flies, wasps, moths, butterflies, beetles Larvae - answerimmatures in complete metamorphosis with different feeding habits than adults Insects that go through incomplete, gradual, or simple metamorphosis - answergrasshoppers, aphids, true bugs Incomplete immatures - answernymphs with lack of wings and reproductive organs, same eating habits Mite, spiders and other arthropod life stages - answerincomplete, mite hatch from eggs and come out as larva, mites and spiders similar eating to adults Generations per year - answermost are once a year, mites and aphids reproduce all year in heat, borers take more than a year to mature Spider Life Cycle - answerhatch from eggs and pass through several instars; live 2-3 years, some 20-30; feed in insects and small arthropods Where Spiders are Found - answerceilings, underneath furniture, crops, and landscape plants Spider Damage - answerblack widow, recluse, hobo, and others inflict harm on humans; presence is a concern in shipped produce Beneficial Aspects of Spiders - answergeneral predators to arthropods, insects, and natural control Tick and Mite Life Cycle - answerhatch from eggs and pass through several immature stages; overwinter as adults; ticks live 1-2 as immatures then 2-3 as adults Where Mites and Ticks are Found - answerMites are parasites on plants or animals, live on upper or lower leaf surfaces, found in dust at homes; ticks are blood- feeding parasites of vertebrates and require blood meals to develop Tick and Mite Damage - answerMites cause serious economic and visual damage causing leaf discoloration or defoliation, can transmit disease- causing microorganisms (citrus leprosis virus); ticks cause Lyme disease or paralysis Springtail Characteristics - answerminute, wingless arthropods about 1/16 inch long, ability to jump several inches high; spring away from danger