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Title:

Insects

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Insects Insects Arthropods (segmented body, exoskeleton, and jointed appendages) Invertebrates Insect Anatomy 3 body segments Head with a pair of antennae and two ... – PowerPoint PPT presentation

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Title: Insects


1
Insects
2
Insects
  • Arthropods (segmented body, exoskeleton, and
    jointed appendages)
  • Invertebrates

Insects
3
Insect Anatomy
  • 3 body segments
  • Head with a pair of antennae and two eyes
    (usually compound- effective at detecting
    movement)
  • Thorax with 6 legs and usually 2 pairs of wings
  • Abdomen contains most of the insects organs
  • Contains small tubes that allow air to enter the
    body oxygen then travels directly to the cells.

4
Insect Anatomy
  • Exoskeleton outer covering (made of protein and
    chitin) that supports and protects the body

5
Insect Nutrition
  • Nutrition various diets for different insects
  • Plants/plant products
  • Animals (ex. fleas and mosquitoes)
  • Decaying animal bodies (ex. Carrion beetles) or
    animal waste (ex. Dung beetle)

6
Insect Feeding
  • Mouthparts are adapted to type of food
  • Butterfly has long tube to drink nectar
  • Ants have sharp mouthparts for cutting wood and
    seeds

7
Insect Senses
  • Good senses (in addition to compound eyes)
  • Chemical receptors on mouthparts, antennae, and
    legs to detect taste and smell
  • Hairs on legs detect slight movements in air or
    water

8
Insect Life Cycles
  • Development (life cycle)- metamorphosis- two
    types
  • Incomplete (ex. Grasshopper)
  • Egg ? nymph ? adult

9
Insect Life Cycles
  • Complete (ex. Butterfly)
  • Egg ? larvae (caterpillar) ? pupa (cocoon) ?
    adult (butterfly)

10
Beware the Bot Fly!
Bot flies use mosquitos to carry their eggs to a
host. The mosquitos inject the host with the
eggs. Eggs grow to maturity underneath the skin.
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