$(a)$ Which type of organs are shown in the figure below?
$(b)$ What is the origin and structure of these organs?

(N/A) The figure shows the wings of an insect and the wings of a bird,which are examples of analogous organs.
$(b)$ These organs have different evolutionary origins and different basic structural designs (e.g.,the bird's wing has bones,while the insect's wing is a membranous extension). However,they perform a similar function,which is flying. Such organs that have different origins but perform similar functions are called analogous organs.