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Chapter 1 terms

TermDefinition
Biosphere All organisms and the part of earth in which they exist
Biodiversity Variety of life within an area
Species Group of organism so similar to each other they can reproduce with each other
Biology Scientific study of all forms of life
Science The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be tested and or verified
Cell Basic unit of life
Metabolism All chemical processes that synthesize or break down materials within an organism
DNA Molecule that stores genetic information in all organisms
System Changing organized group of related parts that interact to form a whole
Ecosystem Collection of organisms and non-living things in one area
Homeostasis Regulation and maintenance of constant internal conditions in an organism
Evolution Change in a species over time - makes the descendants different from their ancestors
Adaption Inherited trait that is selected for over time because it allows organisms to better survive in their environment
Observation Using the senses to study the world, examine, collect measurements
Data Observations and measurements recorded during an experiment
Hypothesis Proposed answer or explanation to a scientific question
Experiment Process that tests a hypothesis by collecting information under controlled conditions
Independent Variable Condition of factor that is manipulated by a scientist during an experiment
Dependent Variable Experimental data collected through observation and measurement
Constant Condition that is controlled so that it does not change during an experiment
Theory Proposed explanation for a wide variety of observation and experimental results
Measurement A determination of the dimensions of something sing a standard unit
Accuracy A description to how close a measurement is to the true value of the quantity measured
Precision The exactness of measurement
Microscope Tool that provides an enlarged image of an object
Gene Scientific region of DNA tat codes for a particular protein
Molecular Genetics Study of DNA structure and function on the molecular level
Genomics Study and comparison of genomes within a single species or among different species
Biotechnology Use and application of living things and biological process
Transgenic Organism whose genome has been altered to contain one or more genes from another organism or species
Created by: qfish
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