Biology Vocab.

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science

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knowledge or a system of knowledge covering general truths or the operation of general laws especially as obtained and tested through scientific method; concerned with the physical world and its phenomena

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observation

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an act of recognizing and noting a fact or occurrence often involving measurement with instruments

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data

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factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation

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inference

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the act of passing from statistical sample data to generalizations (as of the value of population parameters) usually with calculated degrees of certainty

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hypothesis

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an assumption or concession made for the sake of argument

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spontaneous

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arising from a momentary impulse

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manipulated variable

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Condition or quantity altered (manipulated) to regulate, or initiate a change in, some other condition or quantity

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controlled experiment

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An experiment in which an observer tests a hypothesis by looking for changes brought on by alterations to a variable. In a controlled experiment, an independent variable is the only factor that is allowed to be adjusted, with the dependent variable as the factor that the independent variable will affect.

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theory

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the analysis of a set of facts in their relation to one another

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responding variable

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Factor or phenomenon that is changed by the effect of an associated factor or phenomenon called independent variable. For example, consumption is a dependent variable because it is caused and influenced by another variable income. In a mathematical equation or model, it is the variable whose value is to be determined by that equation or model. In an experiment, it is the variable whose behavior under controlled conditions (that are allowed to change in an organized manner) is studied.

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biology

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a branch of knowledge that deals with living organisms and vital processes

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cell

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a small usually microscopic mass of protoplasm bounded externally by a semipermeable membrane, usually including one or more nuclei and various other organelles with their products, capable alone or interacting with other cells of performing all the fundamental functions of life, and forming the smallest structural unit of living matter capable of functioning independently

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electron microscope

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an electron-optical instrument in which a beam of electrons is used to produce an enlarged image of a minute object

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sexual reproduction

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either of the two major forms of individuals that occur in many species and that are distinguished respectively as female or male especially on the basis of their reproductive organs and structures

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asexual reproduction

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eproduction which does not involve meiosis, ploidy reduction, or fertilization.

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metabolism

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the sum of the processes in the buildup and destruction of protoplasm; specifically : the chemical changes in living cells by which energy is provided for vital processes and activities and new material is assimilated

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homeostasis

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a relatively stable state of equilibrium or a tendency toward such a state between the different but interdependent elements or groups of elements of an organism, population, or group

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evolve

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: to undergo evolutionary change

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compound microscope

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a microscope consisting of an objective and an eyepiece mounted in a drawtube

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electron microscope

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an electron-optical instrument in which a beam of electrons is used to produce an enlarged image of a minute object

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cell fracturing

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taking apart a cell in order to find cures