Bio- 2A

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13 Terms

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Conditions needed for life
Source of energy, availability of liquid water, existence in hostile environments.
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Characteristics of a living thing
Movement, respiration, sensitivity, growth, reproduction, equilibrium (homeostasis), excretion, nutrition.
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Cell Theory
Cells are the basic structural and functional units of all life; all living things are made of one or more cells; all cells come from pre-existing cells.
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Prokaryotes
Cells without a nucleus, typically with naked DNA, circular structure, no introns, and smaller size (1-5 µm).
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Eukaryotes
Cells with a nucleus, bound DNA, linear structure, usually containing introns, and larger size (10-100 µm).
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Prokaryotic Reproduction
Binary fission with a single chromosome (haploid).
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Eukaryotic Reproduction
Mitosis and meiosis with chromosomes that are paired (diploid or more).
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Archaebacteria
A type of prokaryotic organism that is unicellular.
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Eubacteria
A type of prokaryotic organism that is unicellular.
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Protista
A kingdom of eukaryotes that can be unicellular or multicellular.
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Fungi
A kingdom of eukaryotes that can be unicellular or multicellular.
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Plantae
A kingdom of eukaryotes that is multicellular.
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Animalia
A kingdom of eukaryotes that is multicellular.