<span>The skull protects the brain and the vertebrae protects the spinal cord. The brain and spinal cord are wrapped in three layers of connective tissue called meninges. Between the meninges and the central nervous system tissue is a space filled withcerebrospinal fluid.</span>
By looking at how the birds interact with fruits in different environment, you can determine where birds are from, what beaks specialize in eating what kind of food, and how those traits came to be (Darwinism)
Not the same and they is not in a relationship
Glacier because ice sheet and stuff and science ill explain more in the comments
Answer:
2. muscular system and cardiovascular system