The long arm of a chromosome
Increase over time because it is moving away from each other.
*Sea floor spreading
Rickets is the disease in children in which an inefficient mineralization of the bone forming tissue causes deformities. This condition results in weak or soft bones in children, normally due to an extreme and prolonged deficiency of vitamin D. Vitamin D promotes the absorption of calcium and phosphorus from the gastrointestinal tract. The symptoms include bowed legs, stunted growth, bone pain, large forehead, and trouble sleeping among others.
Amino Acids. A polypeptide IS a protein.
Answer:
Convergent evolution created all of these flying species.