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.

littering streams           is the answer

cells spend most of their time in interphase