2. (general) (1) A conjecture, an opinion, a speculation or an assumption based on limited information or experience, not necessarily on facts. Credit for the formulation of this theory is given to German scientists Theodor Schwann (1810-1882), Matthias Schleiden (1804-1881), and Rudolph Virchow (1821-1902). (2) An expectation of what would happen, excluding unforeseen circumstances. In fact, it's usually called a "scientific theory" to clarify the distinction. Abiogenesis Definition. Start studying Scientific theory biology.
biological science, biology - the science that studies living organisms. Theory definition, a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena: Einstein's theory of relativity. A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.
Gaia hypothesis (gī′ə) n. 1. Such microorganisms can consist of bacterial, viral, fungal, or protist species. Your hair, skin, organs, etc. evolution, theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations.
Among the early speculations voiced during the 18th century, the British . The meaning of cell theory is a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells. Groups of cells create tissues, organs, and organisms. 1. theory of evolution - (biology) a scientific theory of the origin of species of plants and animals. Spontaneous Generation Theory.
According to the theory, all organisms are made of cells. The meaning of theory is an idea or set of ideas that is intended to explain facts or events. Your hair, skin, organs, etc. evolution, theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations.
Germ Theory Definition.
They may be unicellular or multicellular. Start studying Scientific theory biology. Genes are located on chromosomes and consist of DNA.They are passed from parent to offspring through reproduction. Spontaneous generation is the outmoded theory that living organisms, rather than coming from the reproduction of their species, arise .
scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable". In the context of science, a theory is a well-established explanation for scientific data.Theories typically cannot be proven, but they can become established if they are tested by several different scientific investigators. View Exp.8-Minor-Losses.doc from BIOLOGY 3142 at Fordham University. Lysenkoism (Russian: Лысенковщина, romanized: Lysenkovshchina, [ɫɨˈsɛnkəfɕːʲɪnə], Ukrainian: лисенківщина, romanized: lysenkivščyna, [ɫɨˈsɛŋkɪwʃt͡ʃɪnɐ]) was a political campaign led by Trofim Lysenko against genetics and science-based agriculture in the mid-20th century, rejecting natural selection in favour of a form of Lamarckism, as well as . See more.
The Difference Between Hypothesis and Theory Two Related, Yet Distinct, Meanings of Theory Synonym Discussion of Theory. Scientific theory definition, a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution. - the answers to answer-helper.com
Definition. The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the . Theory definition, a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena: Einstein's theory of relativity. Definition: The Gene Theory is one of the basic principles of biology.The main concept of this theory is that traits are passed from parents to offspring through gene transmission.
The cell theory definition states that cells are the building blocks of life.
Germ Theory Definition. The theory of gravitation, for instance, explains why apples fall from trees and astronauts float in space. Modern principles of other fields, such as chemistry, medicine, and physics, for example, are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In fact, each person is estimated to be made up of nearly 40 trillion cells! The definition of a theory in science is very different from the everyday usage of the word.
Sigmund Freud's psychoanalytic theory of personality development tells us that human personality is the result of three different but fundamental structures - the id, the ego, and the superego. Genes are located on chromosomes and consist of DNA.They are passed from parent to offspring through reproduction. Germ theory of disease is based on the concept that many diseases are caused by infections with microorganisms, typically only visualized under high magnification.
Any of various related hypotheses . noun, plural: theories. Further, cells can only arise from other cells. are all made up of cells. The Endosymbiotic hypothesis is one of the oldest evolutionary hypotheses still in use today.
How to use theory in a sentence. The Cell Theory Is a Unifying Principle of Biology The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life. Germ theory of disease is based on the concept that many diseases are caused by infections with microorganisms, typically only visualized under high magnification. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Abiogenesis is the creation of organic molecules by forces other than living organisms. Scientific theory definition, a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution. The Difference Between Hypothesis and Theory Two Related, Yet Distinct, Meanings of Theory Synonym Discussion of Theory. evolutionism, theory of organic evolution. The diversity of the living world is staggering.
The Cell Theory states: All living organisms are composed of cells. While organisms can create carbon-carbon bonds relatively easily thanks to enzymes, to do so otherwise requires large inputs of energy. Spontaneous generation is the outmoded theory that living organisms, rather than coming from the reproduction of their species, arise . biological science, biology - the science that studies living organisms. In endosymbiotic theory, consistent with general evolutionary theory, all organisms arose from a single common ancestor. A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena. Biology, study of living things and their vital processes that deals with all the physicochemical aspects of life. Endosymbiotic theory suggests that the eukaryotic cell's organelles, such as mitochondria and chloroplasts, evolved as a result of early endosymbiosis between prokaryotic endosymbionts and the eukaryotic host cell. The theory of spontaneous generation was put to rest for good.