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Different microscopic organisms cause different diseases. When a dangerous microscopic organism is transferred from one person to many people, the disease it carries will spread.


Why is this considered a theory instead of a hypothesis or a law?

AIt is a statement of fact about how nature works instead of an explanation.
BIt provides an explanation for many observations and accepted hypotheses.
CIt describes how to test a possible explanation of one specific relationship.
DIt has not changed over time even though new technology has been developed.

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Which statement is a scientific law?

AScientists use genes to explain why evolution happens.
BGenes are long patterns that are similar to computer codes.
CA person’s traits are controlled by different forms of a gene.
DThe discovery of genes changed how scientists think about life.

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Different microscopic organisms cause different diseases. When a dangerous microscopic organism is transferred from one person to many people, the disease it carries will spread.


Why is this considered a theory instead of a hypothesis or a law?

AIt is a statement of fact about how nature works instead of an explanation.
BIt provides an explanation for many observations and accepted hypotheses.
CIt describes how to test a possible explanation of one specific relationship.
DIt has not changed over time even though new technology has been developed.

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Which is the order of microscopes, from greatest magnification to the least?

Ascanning tunneling → transmission electron → compound light
Bscanning tunneling → compound light → transmission electron
Ctransmission electron → scanning tunneling → compound light
Dcompound light → transmission electron → scanning tunneling