Answer:
Sexual reproduction produces genetic variation in offspring.
Explanation:
Answer:
Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.
they are strongest between latitudes of 30°N and 60°N. but they move every year, "following the sun".
