Question

Human hand, the wing of a bat, and the flipper of a whale represent
(a)Analogous organs
(b)Vestigial organs
(c)Homologous organs
(d)Evolutionary organs

Answer 1

Hint: A body part with the same structure between some groups of organisms due to inheritance from the same ancestor, though not necessarily sharing the same function.

Complete answer:
 Homologous structure helps in recognizing the same behavioral characteristics which are modified in different sub-species by their environment.
-Example-
Pentadactyl limbs- bones of limbs of vertebrates are very similar but the functions of each forelimb are different.
-Importance of homologous structure-
To provide a track of evolutionary paths
Diverges between species and subspecies.

Additional Information: -Analogous structures are structures present in different species with similar features in function but not necessarily in structure.
Example- the wings of the insects and birds.
-Vestigial organ- The structures or organs that are not useful are termed as vestigial like, humans have a tailbone, some snakes have limb bones, some salamanders have eyes although they are blind, etc.
Example- the coccyx, or tailbone, in humans.
So, the correct answer is, ‘homologous organs.’

Note: -To have a homologous structure does not always have an analogous structure.
-A study on comparative anatomy involves studying and comparing the structure of different organs. Two organisms are related if their organs internal structure, even if they are shaped differently. There are-
Homologous organs
Analogous organs
Vestigial organs