MATCH: Hypothesis: Theories: Observation: Variable general explanations supported by many experiments and observations: makes predictions that are testable: the act of viewing the world around us: is something that is manipulated in an experiment.

Hypothesis: make predictions that are testable

Theories: Variable general explations supported by many experiments and observations

Observation; the act of viewing the world around us

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

c. establishing proper sleep hygiene