Answer:
Earth was barren, flat and almost entirely under water 4.4 billion years ago
Explanation:
Answer:
The bottom one shows how the circulatory system of a fish functions.
The answer is nutrients.
Nutrients nourish the body by providing it with energy and/or contributing to the body's metabolic processes. Nutrients come from food in the form of carbs, fats, and protein, all of which need to be digested by the body before it can use these nutrients.
