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To prepare flight muscles for use on a cool morning, hawkmoths _________.
A. relax the muscles completely until after they launch themselves into the air
B. decrease their standard metabolic rate
C. rapidly contract and relax these muscles to generate metabolic warmth
D. reduce the metabolic rate of the muscles to rest them before flight

Respuesta :

To  prepare flight muscles for use on a cool morning, hawkmoths rapidly contract and relax these muscles to generate metabolic warmth, thus the correct option is  C

Hawk moths require a preparatory period of wing vibration to elevate the temperature of the flight muscle before they can perform regulated flight. Thus these moths initially increases the temperature between 34- 45 degree Celsius. But after the flight all flew at same temperature. The flight temperature and wing loading have a positive relationship. In  Hawk moths  the thoratic temperature increase with increase in wing beating frequency.

To learn more about Hawkmoth:

https://brainly.com/question/10683383

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