Transcript Diapositive 1 - Yourhomework

INSECTS
Entomology
Notes #11, 10/1/07
The Insect Body
• Arthropods
• Three Body Sections
– Head (eyes, antennae)
– Thorax (wings and legs)
– Abdomen (internal organs)
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Six legs
One pair of antennae
One or two pairs of wings
2 Compound eyes (many lenses) to see
movement
• Small simple eyes to see light/darkness
• Breathe through tubes near exoskeleton
From Egg to Adult
• Complete Metamorphosis
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Examples: beetles, butterflies, flies, ants
Egg
Larva
Pupa
Adult
• Gradual Metamorphosis
Examples: grasshoppers, termites, cockroaches,
dragonflies
– Egg
– Nymph
– Adult
How Insects Feed
• Eat plants, plant parts, paper, animals,
blood, dead bodies, animal droppings
• Mouth is adapted to get food
– Bees have a bristly tongue
– Mosquitoes have a sharp mouth to suck blood
Defending Themselves
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Flee danger (fly away, run)
Painful stings
Smell or Taste Bad
Camouflage
Resemblance to other animals
Project #2: Insect Poster
• Create a “Wanted: Dead or Alive” Poster
• Letter size (8.5 x 11); Colored
• Include such information as the
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Insect’s scientific and common name
Insect’s known occupation/characteristics
insect's natural habitat,
what the insect needs to stay alive
why the insect is "wanted"
• Due Date: Friday, October 5, 2007
• Example: ..\wantedposter2.pdf
Assignment #20: Metamorphosis
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Copy “Exploring Insect Metamorphosis”
page 65 (Labels/Descriptions)
Questions:
1. How is a firefly’s metamorphosis different
from a grasshoppers?
2. When does the grasshopper acquire wings?
3. What do adults do that larvae and nymphs
do not?