According to the Law of Superposition O You cannot tell how old a rock or fossil is.
O The oldest rocks and fossils are found in the rock layers closest to the
bottom.
O The oldest rocks and fossils are found in rock layers closer to the top.
O Rocks and fossils are only found in intrusions.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.