Ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA and similarities of embryos.
glucose would be the answer because glucose is basically sugar
Hypothesis are guesses based on scientific knowledge. Theories are systems of ideas intended to explain something.
The innermost cells of the epidermis are continuously dividing through mitosis to form new cells. The newly formed cells move up through the epidermis toward the skin surface, while producing a tough, fibrous protein called keratin.
Natural selection is the correct answer
