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What is the spontaneous generation hypothesis?
The spontaneous generation hypothesys, or abiogenesis, asserts that life on earth has come from nonliving material. For instance, the fact that with time rats appeared around waste was considered in the past a confirmation of this hypothesis. Some supporters of spontaneous generation associated it with the existence of an active principle (the vital elan) that would be the source of life, a theory called as vitalism.
Origin of Life - Image Diversity: abiogenesis
What is an ecosystem? An ecosystem is the system that composed of biotic and abiotic factors in interaction.
Q. What are the main biological functions of water? Water is the basic solvent for chemical reactions of living beings; it is the main means of substance transportation in the
Q. What are some functions of the epithelium? The epithelial tissues can perform protection, covering and impermeability against the environment, for instance, in the skin, res
Action of Hormones We said earlier that hormones are released into the blood stream or extracellular fluid and therefore, reach most of the cells of the body. However, they
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Q. Is the ventricle lumen larger during diastole or during systole? During diastole the opposite occurs. The muscle fibers of the ventricles relax and the lumen of these chambe
Define about the Pancreatic Cancer? This is a condition often associated with abdominal pain, anorexia, nausea, and vomiting and weight loss. Ealing may aggravate pain. There m
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Give an example of each of the following types of proteins: a. Enzyme b. Structural protein c. Motor protein
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