Water does not pass the test of being a solid soit is not considered a mineralalthough ice; which is solid, is classified as a mineral as long as it is naturally occurring. Thus ice in a snow bank is a mineral, but ice in an ice cube from a refrigerator is not. Is gold a mixture?
Fibrocartilage is a transition tissue that should be viewed as a blend betweenhyaline cartilage and dense fibrous connectivetissue. It is a white, densely arranged, opaque, tufted tissue with a mixture of both chondrocytes and fibroblasts. Why are there no capillaries in cartilage? There are no b...
It is well known from classical neuroanatomy that many of the large entities of the brain are interconnected by extrinsic pathways into complex systems, including massive reentrant circuits. Three sets of recent discoveries, described above, have put the systematic organization of the brain in a new...