exam 1 Flashcards
observation
process of gathering information about events or processes in a carful, orderly way
data
information gathered from an observation
inference
logical interpretation based on prior knowledge or experience
hypothesis
proposed scientific guess
spontaneous generation
life can arise from nonliving matter
controlled experiment
one variable at a time is changed
manipulated variable
variable that is deliberately changed
responding variable
variable that responds to the manipulated variable
theory
hypothesis that may be so well supported
biology
science that seeks to understanding the living world
cell
collection of living matter enclosed by the barrier that seperates it from its surrondings
sexual reproductiuon
two cells from different parents that unite to reproduce the first cell of the new organism
asexual reproduction
single parent reproduces by itself
metabolism
combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
stimulus
signal to which an organism respponds
homeostasis
when an organism maintains its stable internal condition
evolution
ability of group of organism to change over time
metric system
decimal system of measurements whose units are based on certain physical standards and are scaled on multiples of 10
science
organized way of using evidence to learn about the natural world