Answer:
Organisms with variations that makes best suited to their environment are more likely to survive.
(Darwin's theory)
2.5g/ml will sink because it has higher density compared to water
0.5g/ml will float because it has lower density compared to water
3. It produces RNA strands
Answer - A transportation into the Haversian Canals
Reasoning - The haversian canals has a complex surrounding of nerve cells and especially blood vessels that communicate throughout the bone structures. Which in turn can have like a transportation for nutrients and within the Haversian canals.