Heterogenetic antigen An antigen which is possessed by a variety of different phylogenetically unrelated species; e.g., the various organ-or tissue-specific antigens, the alpha-and beta-crystalline protein of the lens of the eye, and forssman antigen. Synonym: heterophil antigen...
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
