Grade 7 Ch 1 Bacteri Word Scramble
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Term | Definition |
organism | living thing |
cell | basic unit of structure and function in an organism |
unicellular | single-celled organism |
multicellular | organisms composed of many cells |
growth | the process of becoming larger |
development | the process of change that produces a more complex organism |
stimulus | a change in an organism's surroundings that causes the organism to react |
reaction | an action or change in behavior |
reproduce | to produce offspring that are similar to the parents |
spontaneous generation | the mistaken idea that living things arise form nonliving sources |
controlled experiment | two test that are identical in every respect except for one factor |
variable | the one factor that is changed in an experiment |
autotrophs | organisms that make their own food |
heterotrophs | organisms that cannot make their own food |
homeostasis | the maintenance of stable internal conditions despite changes in the surroundings |
fossils | traces of ancient organisms that have been preserved in rock or other substances |
classification | the process of grouping things based on their similarities |
taxonomy | the scientific study of how living things are classified |
prokaryotes | organisms whose cells lack a nucleus |
nucleus | a dense area in a cell that contains nucleic acids |
eukaryotes | organisms with cells that contain nuclei |
Created by:
Dcoleman
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