molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem
	molecule, cell, tissue, organelle, organ, organ system, organism, population, community, ecosystem
	molecule, organelle, tissue, cell, organ, organ system, organism, population, community, ecosystem
	molecule, organelle, cell, tissue, organ, organ system, organism, ecosystem, community, population
	molecule, organelle, cell, tissue, organ, organ system, organism, population, ecosystem, community

	Eukaryotic cells lack a membrane-enclosed nucleus and are generally smaller and simpler than prokaryotic cells.
	Prokaryotic cells lack a membrane-enclosed nucleus and are generally smaller and simpler than eukaryotic cells.
	The genetic information, or DNA, of a eukaryotic cell is located in a membrane-enclosed nucleus.
	Prokaryotic cells lack a nucleus and membrane-enclosed organelles.
	Plants, animals, and fungi are composed of eukaryotic cells; bacteria and archaea are composed of prokaryotic cells.

	They flow through the system, losing some nutrients in the process.
	They recycle within the ecosystem, being constantly reused.
	They can be converted into energy.
	They depend on sunlight as their source.
	They cannot be obtained from decomposition.

	The DNA molecule is composed of two chains of nucleotides arranged in a double helix.
	Every chromosome is composed of one DNA molecule with thousands of genes arranged along its length.
	Every DNA molecule is composed of two long chains of building blocks called nucleotides.
	The genes along the length of DNA molecules encode the information for building all the cell's other molecules.
	The DNA molecule is composed of many amino acids joined together to form a functional protein.

	polymer duality
	the complexity/simplicity paradox
	the summation theory
	emergent properties
	energy flow, processing, and utilization

	Bacteria
	Archaea
	Eukarya
	Fungi
	Plantae

	heritable variations
	adaptation to the environment
	reproductive success of the adapted organisms
	random mating
	any of the above

	new experimental results are obtained that cannot be explained by the old model
	the old model has been in place a long time
	the individuals who first developed the old model have died
	no experiments related to the model have been done recently
	all of the above

	established facts
	testable and falsifiable
	proven correct
	popular
	reproducible

	observation and the analysis of quantitative data
	observation and the analysis of qualitative data
	proposing and testing hypotheses
	proving a hypothesis to be true
	using deductive reasoning to test a hypothesis