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C190 - Introduction to Biology WGU - Modules 1 2 & 3- Questions and Answers
- Vak
- Instelling
Matter Any substance that has mass and takes up space 2 classes of matter biotic (living/have lived) abiotic (nonliving/never alive) The basic unit of matter the atom The atom is made up of: a dense nucleus surrounded by electrons Atoms join together and form: molecules
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