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ENTOM 201: Quiz 11/23
How long has flight been around? |
350 MYA |
Define elytra |
Hardened forewings |
Define hemelytra |
Half hard, half soft |
Define halteres |
Highly modified wings |
Who has scaled wings? |
Lepidoptera |
___ provide strength to withstand ___ stress. |
Wings
Aerodynamics |
How do insects move their wings in flight? |
↓ power stroke
↑ recovery stroke |
Direct flight muscles |
Red muscles activated |
Indirect flight muscles |
Muscles not attached to wings
Flight muscle action on thorax |
Angle of attack is based on |
Direction of airflow |
Insect flight is not just about |
Flapping wings |
Fly landing on ceiling |
Momentum to swing the rest of the body to land on the wall |
Pests are a ___ concept |
Arthopocentric |
How do insects become pests? |
New introduction
Abundant concentration of resources |
Attributes to crop monoculture |
Human selected plants
Nutrients and water added |
Abiotic |
Temperature
Density |
Biotic |
Competition
Natural enemies
Food |
Natural enemies |
Predators
Pathogens
Parasitoids |
Food |
Plant nutrition
Plant defense |
Define life tables |
Useful technique for understanding insect population dynamics |