Modern Biology (Holt, Rinehart, and Winston) Chapter 1 terms
About this set
Created by:
peckhammac on September 14, 2008
Subjects:
biology, biology terms, the science of life, characteristics of life, scientific method, experiment
Description:
This set is designed for Holt Rinehart and Winston- Modern Biology textbook Chapter 1 biology terms but it could help in other biology classes too. Hope it helps! :)
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29 terms
Terms | Definitions |
|---|---|
 biology | The study of life |
| organization | the high degree of order within an organism's internal and external parts and in its interactions with the living world |
| cell | the smallest unit that can perform all life's processes |
| unicellular | made up of one cell |
| multicellular | multiple cells |
| organ | a structure that carries out specialized jobs within an organ system |
| tissues | groups of cells that have similar abilities and that allow the organ to function |
| organelles | tiny structure that carry out functions necessary for the cell to stay alive |
| biological molecules | the chemical compounds that provide physical structure and that bring about movement, energy, use, and other cellular functions |
| homeostasis | that maintenance of a stable level of internal conditions are constantly changing |
| metabolism | the um of all chemical reactions that take in and transform energy and materials from the environment |
| cell division | the fomation of two new cells from an existing cell |
| domains | major subdivisions of all organism |
| kingdoms | a grouping system that divides organisms into 6 major categories |
| ecology | the study of organisms interacting with each other and the environment |
| ecosystems | communities of living species and their physical environments |
| evolution | the process in which the inherited characteristics within populations change over generations |
| natural selection | organisms that have certain favorable traits are better able to survive and reproduce successfully than organism that lacks these traits |
| adaptations | traits that improve an individual's ability to survive and reproduce |
| scientific method | an organized approach to learn how the natural world works |
| observation | the act of perceiving a natural occurance that causes someone to pose question |
| hypothesis | a proposed explanation for the way a particular aspect of the natural world functions |
| prediction | a statement that forcasts what would happen in a test situation if the hypothesis were true |
| experiment | used to test a hypothesis and its predictions |
| control group | provides a normal standard against which the biologist can compare results of the experimental group |
| experimental group | identical to the control group except the independant variable |
| independant variable | the experimenter manipulates the independant variable |
| dependant variable | is affected by the independant variable |
| theory | a set of hypothesis that is confirmed to be true |
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