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Biology Unit 1

DefinitionWord
an organized way of gathering and analyzing evidence about the world science
process of noticing and describing events in a carefully, orderly way observation
a logical interpretation based on prior knowledge and experience inference
educated guess; possible explanation for observations hypothesis
various factors that can change in an experiment variable
experiment in which only one variable is changed controlled experiment
factor in an experiment that is changed independent variable
factor that is observed and changes in response to independent variable dependent variable
group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable control group
the group being experimented on experimental group
info gathered from observations, evidence data
data that can be measured or counted quantitative data
descriptive,data that cannot be counted qualitative data
well tested explanation that unifies a broad range of observations and hypotheses, and enables scientists to make accurate predictions about new situations theory
considered universal and invariable facts of the physical world Scientific Laws (natural laws)
study of life biology
any living thing organism
anything in an organism's external or internal environment that causes the organism to react stimulus
reaction to a stimulus; only living things respond response
regulation of an organisms internal environment to maintain conditions suitable for its survival homeostasis
the combination of chemical reactions through which an organism builds up or breaks down materials metabolism
smallest unit of life capable of carrying out all the functions of living things cell
group of cells that performs a specific function in an organism tissue
several types of tissues that function together for a specific purpose organ
several organs working together to perform a function organ system
any living thing organism
group of organisms of the same species that lives together in a particular location population
includes all the populations of different kinds of organisms living in the same place community
includes the communities of organisms in an area, as well as the non living factors ecosystem
instrument that uses lenses to produce an enlarge, focused image microscope
uses a series of light to magnify objects in steps compound light microscope
the ability to distinguish between two points as seperate points resolution
study of the physical structures of humans and animals anatomy
study of structure and function of plants botany
study of the structure and function of cells cytology
study of the relationships among organisms and their environment ecology
study of animal behavior ethology
study of creatures whose existence has not been substantiated cryptozoology
study of heredity genetics
study of the body's defenses against diseases and foreign subtance immunology
study of microscopic organisms microbiology
study of the functions organs and organ systems physiology
study of the scientific classification of animals taxonomy
study of the structure and function of animals zoology
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