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Ch 1 and 2 bio

Biology and elctrons

QuestionAnswer
Which sequence correctly lists the different levels of biologicial organization? cells-tissues-organ systems- organisms
Application of scientific knowledge for practical purposes is called technology
All populations in one natural setting plus their physical enviroment constitutes a(n) ecosystem
the layer where organsims can exist on the surface of the earth is the Biosphere
3 major domains of life are archaea, bacteria, and eukaryotes
the chemical reactivity of an atom is dependent on # of electrons in the outer shell
When an ionic bond forms, electrons are either lost or gained
Covalent bonds result from gaining electrons
polar molecules always contain carbon
Organic molecules always contain carbon and hydrogen
A fat is called ____ if all carbons of the fatty acid chain are single bonded to 2 other carbons and 2 hydrogens saturated
the lipid group that is the major componet of cell membranes are the Phospholipids
Smallest unit that has all of the characteristics of life is cell
Created by: bluecat21
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