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Chapter 1 Vocabulary

QuestionAnswer
Biology The study of life.
Biodiversity The variety of organisms in a given area.
Species A group of organisms that are closely related and can produce fertile offspring.
Science Knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested.
Organism The high degree of order within an organisms internal and external parts and in its interactions.
Cell Basic unit of life.
Metabolism All of the chemical processes that build up or break down materials.
DNA The genetic material that contains the information that determines inherited characteristics is a molecule.
System An organized group of related parts that interact to form a whole.
Ecosystem A community of organisms and their physical environment.
Homeostasis The maintenance of constant internal conditions in an organism.
Evolution The change in living things over time/ change in the genetic makeup of a subgroup, or population, of a species.
Adaptation An inherited trait that gives an advantage to individual organisms and is passed on to future generations.
Observation Using the senses to study the world; using tools to collect measurements; examining previous research results.
Data Scientists collect two general types of data qualitative data and quantitative data.
Hypothesis A proposed answer for a scientific question. It must be specific and testable.
Experiment Process that tests a hypothesis by collecting information under controlled conditions.
Independent Variable Condition that is manipulated, or changed, by a scientist.
Dependent Variable Experimental data collected through observation and measurement.
Constant The conditions that do not change during an experiment.
Theory proposed explanation for a wide variety of observations and experimental results.
Measurement A determination of the dimensions of something using a standard unit.
Accuracy A description of how close a measurement is to the true value of the quantity measured.
Precision The exactness of a measurement.
Microscope Tool that provides an enlarged image of an object.
Gene Specific region of DNA that 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 processes.
Transgenic Organism whose genome has been altered to contain one or more genes from another organism or species.
Created by: ZelieH
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