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Insects Insects a type of arthropod… Insects

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Insects Insects a type of arthropod… Insects Powered By Docstoc
					Insects
          a type of arthropod…
Insects
• Within the group
  “Arthropod”, there is       All Arthropods
  the group of animals
  known as insects.
• Insects account for
  about 80% of all
  arthropods.
                          Other Arthropods   Insects
  Insects
                              Copy this chart into your notebook:
                          Key structures of      Key structures of
                              Arthropods               Insects
• Insects are             3 or more pairs of     3 pairs of jointed
  arthropods.                  jointed legs               legs
                             Exoskeleton            Exoskeleton
• For an organism to         covering entire        covering entire
  belong to the insect            body                   body

  group, it needs to      Body made of 2 or       Body made of 3
  have specific traits.       more distinct            distinct
                                segments              segments

                          Some have wings or specialized mouths.
Insect Bodies
• All arthropods have a body with at least 2
  distinct body segments.
• Insects, which belong in the arthropod
  group, have 3 distinct body segments.
Insect Bodies…
• They are the Head, Thorax, and Abdomen.
Insect Bodies…
• The thorax is the mobility segment of an
  insect.
• The legs and wings are attached to the
  thorax.
• The digestive system is located in the
  abdomen.
• The brain is located in the head. (of course)
Take a look…

				
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posted:3/23/2012
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