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11 terms

chapter 2 vocab, mcgraw hill

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hypothesis
a proposed scientific explanation for a set of observations
cell culture
group of cells that form from a single cell
data
information gathered from observations
evolve
change over time
metric system
A decimal system of measurement whose units are based on certain physical standards and are scaled on multiples of 10
homeostasis
process of keeping internal conditions fairly constant
cell fractionation
a technique to separate the different cell parts
microscope
device that produces magnified images of structures that are too small to see with the unaided eye
biology
science that seeks to understand the living world
theory
well-tested explanation that unifies a broad range of observations
natural selection
a natural process resulting in the evolution of organisms best adapted to the environment