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What invention led to the discovery of the cell?
Which of the following is generally consistent among living organisms?
Which of the following is at the most complex level of organization among the others?
According to the natural selection theory, who is more likely to survive and reproduce?
Homo sapiens is the scientific name for humans, where Homo refers to the __________ and sapiens refers to the _________ name.
A research team is planning to test a certain drug's effectiveness in treating diabetes in humans. Which of the following will serve as the control group?
________ variables can be manipulated by the researcher and are thought to directly affect the _______ variable.
A double-blind experiment is:
