Analysis of Biology Questions Assignment Example | Topics and Well Written Essays - 750 words - 16

Analysis of Biology Questions - Assignment Example    Living organisms live together and share different resources including food, shelter, air, water and many more. In a given environment, some organisms may survive while others may not be able to survive at all depending on how well the organism is adapted to the environment. In general, life is all about competition, and only the fit survive. Natural selection occurs under the following four conditions. First, there has to be a variation among individuals in a species such that some traits give a given species an advantage over the other to survive in an environment. Secondly, some of the variations should be genetic, such that the offspring inherit them from their parents. Thirdly, for natural selection to come in play, it is assumed that not every organism survives or reproduces, some will die and others are not fertile and thus can`t reproduce. Finally, reproduction should be guaranteed so that the organisms do not become extinct. 1. Carl Woese, an American biologist, grouped life on earth into three domains, Bacteria, Eukaryote, and Archaea. Archaea-like crenarchaeota are prokaryotes with specialized membrane and can survive in very salty and extremely hot environments. Bacteria are prokaryotic cells like proteobacteria and cyanobacteria. Eukaryotes are eukaryotic cells into which kingdom Plantae, Animalia, Fungi, and Protista are grouped. 2. The scientific theory is a statement that explains the observed natural phenomenon, basing on scientific evidence, for example, the atomic theory of matter. On the other hand, scientific law, are mathematical in nature and are in most cases derived from a principle, they may not be generalized, and they apply under specific conditions, for example, Ohms law.