Oceanic crust has been forming on Earth for over 4 billion years, all of the sea floor older than <span>about 200 million years. </span>
I am pretty sure a pigs heart has the same structure as a human heart so in saying this the if i remove correctly the right side has more muscle as it has to provide blood to most of the body not including the lungs
<span>Stem cells. There are two types of stem cells: adult stem cells - these are unspecialised cells that can develop into many (but not all) types of cells. Embryonic stem cells - these are unspecialised cells that can develop into any type of cell. And that's all! ;)
Hope this is useful !!!^_~!!!</span>
I would assume because of where san francisco is i suppose that it just depends on where your located at
Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus