There is an enzyme that catalyzes the production of the pigment responsible for dark fur color in siamese cats and himalayan rabbits. this enzyme is thermolabile, meaning that it does not function at higher temperatures. rabbits raised at 5 c are all black. if raised at 20 c,

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?