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What are the characteristics of Arthropds?
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Jointed appendages,bilateral symmetry,a body cavity,a digestive system,a nervous system, segmented bodies and exoskeleton
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What are the types of arthropods?
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Insects,arachnids,centipedes and millipedes and crustaceans
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What is the value of arthropods?
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Source of food, cross pollination,bees produce honey, silk worms produce silk, bee venom used for arthritis.
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How many body parts does an insect have and what are they called?
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Three body parts. Head,Thrax, abdomen
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What does arthropoda mean?
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Jointed foot
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How does an arthropid Grow?
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It molts
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What does the head of an insect look like?
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It has a pair of antennae, eyes and a mouth
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What does the thorax look like?
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Three pairs of legs and one or two pairs of wings.Some don't have wings.
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What does the insect abdomen have inside?
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Reprodcutive structures and spiracles.
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What do the spiracles do?
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Openings on the abdomen and thorax through which air enters and waste gases leave the insects body
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Define metamorphosis.
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Process in which many insect species change their body form to become adults.Can be complete or incomplete
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What are the stages of complete metamorphosis?
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Egg, larva, pupa and adult
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What do insects eat?
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Plants, blood,nectar,clothes,wood,decaying materials
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Why are insects successful?
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They have tough,flexible, waterproof exoskeletons, fly, reproduce rapidly and are small. can live in many different environments. camouflaged.
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Name examples of arachnids?
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Scorpions,spiders, mites and ticks
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