Which of the following statements about the properties of life is false?
The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels, and millions of bacteria. Together, all of these organisms represent
Your instructor asks you to look into your microscope to see a prokaryotic cell. You will be looking for a cell that
Organisms that are prokaryotes are in the domains
Which of the following is a kingdom within the domain Eukarya?
To be scientifically valid, a hypothesis must be
A theory is
Which of the following statements best describes a compound?
The four most common elements in living organisms are
Which of the following best describes the atomic number of an atom?
A radioactive isotope is an isotope that
A(n) ________ forms when two atoms share electrons.
________ are weak bonds that are not strong enough to hold atoms together to form molecules but are strong enough to form bonds within and around large molecules.
The tendency of water molecules to stick together is referred to as
Water's surface tension and heat storage capacity is accounted for by its
A buffer :
Typically, nitrogen atoms are composed of electrons, protons, and neutrons. An isotope of nitrogen could
Which of the following particles is found in the nucleus of an atom?
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