competition
source: my biology teacher
For growth, repair and differentiation
Answer:
Active transport often takes place in the internal lining of the small intestine.
Explanation:
Plants and animals provide food for humans. Plants cycle the air for humans too.
Answer:
Cell division is the mechanism by which DNA is passed from one generation of cells to the next and ultimately, from parent organisms to their offspring. During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.
