In insects,indirect flight muscles
A)tend to be found in the more primitive orders such as the locusts and dragonflies.
B)change the position of the wings by altering the shape of the thorax.
C)function in the absence of direct flight muscles.
D)are also referred to as synchronous flight muscles.

Question

Quizplus · Accepted Answer

Indirect flight muscles in insects work by altering the shape of the thorax, which in turn changes the position of the wings. This allows for more complex and flexible wing movements than direct flight muscles, which contract and relax to directly move the wings. Indirect flight muscles are found in more advanced insect orders such as Diptera (flies) and Hymenoptera (bees, wasps). They are also referred to as asynchronous flight muscles, as they do not contract and relax in a synchronized manner like direct flight muscles.

In Insects,indirect Flight Muscles