Sponges produce structures called gemmules, which are hard outer coatings protecting a reproductive bud during times of drought. what type of adaptation is this? a. biochemical b. ecological c. structural d. physiological

The correct answer is option b- Ecological adaptation

Ecological adaptation is type of adaptation in which an organism adapts a particular trait or character that helps it to survive hard time. This adaptation stays for a small period of time.

Formation of gemmules on the surface of the sponges which are hard coating protecting a reproductive bud during the times of drought is ecological adaptation. These are structures that protects the sponges over time during extreme conditions.

use smarts app it gives all theanswers