D. Grams per cubic centimeter
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells
Explanation:
Answer: directional selection, disruptive selection and stabilizing selection
Explanation:
Natural selection is when organisms adapt to the environment and pass down these adaptations to their offspring when they breed
Answer:
Birth is an example of a normally occurring positive-feedback mechanism.
