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Gloribel Alvarez

chapter 21 words

TermDefinition
Observation that act noticing and describing events or processes in a careful, orderly way
Inference is a logical interpretation based on what scientists already know
Hypothesis is a tentative scientific explanation that can be tested by further observation or by experimentation
Controlled experiment all other variables should be kept unchanged, or controlled
independent variable the variable deliberately changed is called the independent variable.
Dependent variable the variable that is observed and that changes in reponse to the independent variable is called the dependent variable
Control group is exposed to the same conditions as the experimental group except for changes in the independent variable
Data Scientists observe their experiments , gathering two main types of data
Theory that's where we encounter an important scientific term: theory
Bias is a personal,rather than scientific,point of view for, or against, something
Biology the science that employs scientific methodology to study living things
Sexual reproduction cells from two different parents unite to produce the first cell of the new organism
Asexual reproduction the new organism has a single parent
DNA biologists now know that the directions for inheritance are carried by a molecule called DNA
Metabolism the combination of chemical reactions as it carries out its life processes is called metabolism
Stimulus is a signal to which an organism responds
Homeostasis the relatively constant set of condition is called homeostasis
Evolve as a group, however, any given kind of organism can evolve, or change over time.
Created by: Alvarglo
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