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BIO 156 EXAM 1 QUESTIONS AND ANSWERS
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BIO 156 EXAM 1 QUESTIONS AND ANSWERS
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BIO 156 EXAM 1 QUESTIONS ANDANSWERS
Hierarchy of organization - Answer --atoms, molecules, cell, tissue, organs, organ
system, organism
-organism, population, community, ecosystem, biosphere
characteristics of living things - Answer -organized, need nutrients and energy, respond
to stimuli, reproduce and develop, adapt
Scientific process - Answer -observation, hypothesis, experiment/further observation,
data, conclusion
homeostasis - Answer -internal balance, process by which organisms maintain a
relatively stable internal environment
element - Answer -92 natural occurring, Carbon hydrogen, nitrogen, oxygen,
phosphorus, sulfur
CHNOPS - Answer -Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
atom - Answer -smallest particle of elements
atomic number - Answer -number of neutrons in the atom
atomic mass - Answer -neutrons + protons
periodic table - Answer -vertical- groups, chemically similar
horizontal- periods, larger and larger
isotopes - Answer -atoms of the same element that have different numbers of neutrons
electron shells - Answer -different energy levels referred to as electron shells
oclet rule - Answer -inner shell has 2 orbitals, others have 8, or multiples of 8
if 3 or less - Answer -tends to donate
if 5 or more - Answer -tends to recieve
molecule - Answer -two or more atoms bonded together
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