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24 Cards in this Set

  • Front
  • Back
Stimulus
A sign to which an organism responds
Sexual Reproduction
Cells from two different parents unite to produce the first cell of the new organism
Manipulated Variable
Varible that is deliberately changed
Data
Information gathered from observations
Spontaneous Generation
The idea that life could arise from nonliving matter
Cell
A collection of living matter enclosed by a barrier that seperates the cell from its surroundings
Controlled Experiment
A hypothesis tested by an experiment in which one vareable is changed at a time; all other should be kept unchanged, or controlled
Responding Variable
Variable that is observed and that changes in response to the manipulated variable
Metric System
A decimal system of measurement whose units are based on certain physical standards and scaled on multiples of 10
Evolution
The ability of a group of organisms to change over time
Electron Microscopes
Use beams of electrons to produce images
Microscopes
Devises that produce magnified images of structures that are too small to see with the unaided eye
Compound Light Microscope
Allow light to pass through the specimen and use two lenses to form an image
Cell Fractionation
A teqnique to seperate the different cell parts
Cell Culture
A group of cells, developed from the single origonal cell
Homeostasis
The process in which organisms keep internal conditions fairly consistant to survive
Observations
The process of gathering information about events or processes in a careful, orderly way
Hypothesis
A proposed scientific explination for a set of observations
Biology
The study of life; science that seeks to understand the living world
Theory
Well supported hypothesis
Inference
A logicval interpretation based on prior knowledge or experience
Science
An organized way of using evidence to learn about the natural world
Metabolism
The combiination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
Asexual Reproduction
New organism has a single parent