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

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

since electrons are negative the answer is neagtaive