Question

Which of the following is/are exaptations?

-Feathers
-Production of many small offspring in high predation sites.
-Cranial sutures
-Development of a waxy cuticle in dry environments.

Answer 1

Feathers and the development of a waxy cuticle are exaptations.

Step-by-step explanation:

Exaptations refer to traits that have evolved for one purpose but have been co-opted for a new function. In the given options, feathers can be considered an exaptation as they originally evolved for thermal regulation and later became adapted for flight in birds. Another exaptation is the development of a waxy cuticle in dry environments, which initially evolved to reduce water loss but also functions to protect plants from desiccation.