quiz 1 scientific method

A controlled experiment _____.

includes at least two groups, one of which does not receive the experimental treatment

A scientific theory is:

a concept that is supported by experimental evidence that explains the facts in an area of study.

A suggested explanation that might be true and is subject to testing by further observations is a(n):

hypothesis.

Cells are _____.

characteristic of prokaryotic and eukaryotic organisms

Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a(n) ________.

control

In comparison to eukaryotes, prokaryotes _____.

are smaller

In the process of science, which of these is tested?

a hypothesis

Prokaryotes are classified as belonging to two different domains. What are the domains?

Bacteria and Archaea

Viruses contain DNA or RNA, but lack genes necessary for metabolism and reproduction. Why are viruses not considered to be alive?

Viruses are unable to reproduce independently of a host.

Which of the following is the best description of a control for an experiment?

The control group is matched with the experimental group except for one experimental variable.