生物
I name a series of existence such as an animal or the plant generally and call it a creature (I hit result) or a creature (of the breath). There is the common ancestor of all creatures on the earth (an ancestor common for the beginning a living entity), and it is said to a gene that evolution got up in what various variation produces as I multiply it, and the descendants reproduce it. I come to form biosphere bound together by relations complicated each other while biological diversity as the Homo sapiens older brother is born from a result, bacteria, and depending on each other's existence and the global environment. There is the thing which calls it Gaia. It points at the food which does not do heating of cooking it when I read with a creature (an uncooked food). It is difficult to define a creature. I live, and, by the normal words, biology is that there is life to live, and the reason is because it is possible for only a different way of saying. The guarantee that is all the creatures does not have the thing which we consider it to be a creature and can know now. As the general characteristic that biology is distinguished by an inanimate object, the creature holds ability for self-increase, ability for energy conversion, three ability of the ability for constancy (a homeostasis) maintenance. The individual of the creature is born from the ancestor (a parent) by a self-reproduction of some kind of form and greets death with failure of almost constancy. In time of the meantime, the creature throws away a disused material from the outside forth I take in a material and let you do a chemical change in the body and I am constant and maintain the state of own body by energy to produce or and I develop it. It means that the state that is active while converting this birth and energy between the death lives. In other words it may be said that it is structure for a work of the metabolism mainly on the enzyme consisting of the protein and a work of the heredity by the gene consisting of the nucleic acid to maintain that a creature is a creature if I say with a creature on the earth. If only a creature on the current earth says, the characteristic to define a creature most definitely is to consist of a cell. The cell is the smallest unit to be able to consider to be a creature in the definition of the creature mentioned above. There are a virus and a rickettsia in the border domain of a creature and the non-creature. Both all of you has nothing without the existence of the living cell of the other kind, but I work on I am constant under the existence of a suitable cell and I reproduce self and increase numbers and can invade other cells. I do not change with the behavior of the pathogen of the bacteria which is a creature, and it is seen clearly. The rickettsia consisting of cells has many examples put in a creature, but, as for the close drawing that did these three ability in a standard in the border domain, it is difficult structurally because the rickettsia does not have self increase ability alone either. Because I do not have structure about ability for self-increase in oneself without having the structure of the cell, as for the virus, there is much judgment to consider not to be a creature conventionally. But the possibility that biology affected in the origin of the existence is high, and it is not thought with the having nothing to do with to a creature. The one of the characteristics of the creature is that each individual forms a group called a kind. I recognize the difference of the kind, and it is work called the classification to keep a scientific name. It is said 2,000,000 only with a classified kind, but it is said now even if actually there is a kind of these several times. The classification obeys several phases categories and calls the biggest category world. There was 2 world opinion (plant kingdom, an animal kingdom) which they did when they were the oldest, and the creature became a plant from an animal historically, and, with the development of the outlook on the later creature, all parts of the world theory, 5 world theory, 8 world theory appeared. The 5 world opinion which classifies the whole creature in moneran world (including the prokaryote), abiogenesis world of creatures, plant kingdom, bacteria world, the animal kingdom spreads widely generally now. Three domains theory I obey a cell characteristic for the arts and sciences, and to classify the whole creature in organism with a nucleus, bacteria (bacteria), old bacteria is wide, and I am accepted, and, as for the microbiologist, a tendency to use this classification for is particularly strong. Water, protein, lipid, carbohydrates, the nucleic acid are main constitution ingredients of the creatures. The state to live is good at the viewpoint to be the grand total of innumerable chemical reactions. It is water to offer the place where these chemical reactions happen. I am extremely important and the creature depends on special properties of matter of the water for most, and it is a main constitution ingredient. The one of the materials symbolizing the complexity of the creature is protein. Protein is the thing that 20 kinds of amino acids were connected several hundred from dozens of, but the kind amounts to tens of millions of kinds by the permutations and combinations. A certain protein works various to say when a work, the thing which there is work as the frame which can support the structure of the creature as an enzyme catalyzing a chemical reaction. The compartmentalization that there is is done space with the cell as having named a small room (a cell = cell) in the small division where Robert hook has begun to do microscopy of cork, and what I isolate from the outside world is an important matter letting a creature consist. It is a cell membrane to do this division, and lipid is the ingredient which is the main pivot…