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1.
SE7.12C Which of the following represents the correct order for the levels of
organization of plants and animals?
cell-organ-tissue organism + organ system
O
cell organ system organ-tissue organism
cell tissue organism -- tissue organ system
©
cell tissue organ-organ system - organism
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18

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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explanation:

because dgjpwojefopjwp

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