Entomology Quiz

Difference between synchronous and asynchronous: Synch

• One wing flapper nerve impulse, slow flapping, can't hear it

• Up to hundreds of wing flaps per one nerve impulse

Difference between synchronous and asynchronous flight muscles: Asynchronous

• One wing flapper per nerve impulse, slow flapping, can't hear it

• Up to hundreds of wings per one nerve impulse

Do Insects ever get tired and have to stop and catch their breath? If no, why not?

Answer explanation

No they don't. Tracheal system provides fresh air to every single cell and removes CO2

Describe the Hydrostatic skeleton, especially in larvae

Answer explanation

Larvae don't have rigid walls for muscle attachment, so they have many more muscles and are filled tight with body fluids (almost like a water balloon about to pop)

Describe how legless larvae like maggots move:

Answer explanation

Sloshing hemolymph from front to back, then to front, repeat. Half of the bod is rigid while the other half is squishy.

Would a soft bodied insect with a hydrostatic skeleton be able to function or move if they suffered a pop or a leak of hemolymph, or was significantly dehydrated?

Answer explanation

No-loss of pressure. (kind of like an undefiled water-balloon, would be flabby and can't move well)

Are insects "feats of strength" actually significant?

Answer explanation

No-as muscles get smaller in cross section, they do lose power, but their volume reduces faster.

Basic nerve cell

• muscle
• cell
• tissue
• neuron

3 types: Sensory

• Receives input/ stimulus (light, heat, sound movement, chemicals)

• "processes" the signal (Good?Bad?)

• Connects to muscles and does the response to stimulus. Fly? Jump? Grab?

• Motor

3 types: Interneuron

• Neurotransmitter
• receives input/stimulus (light, heat, sound, movement, chemicals)

• "Processes" the signal (good? bad?)

• Connects to muscles and does the response to the stimulus. Fly? Jump? Grab?