What would most likely occur if an experimental design specifies only a test group? a)the experiment will lack a control. b)the experiment will lack a purpose. c)the experiment will not be repeatable. d)the experiment will not have variables.

The correct answer would be option A.

Any experimental design two types of groups; control and experimental groups.

Thus, the given experimental design would lack the control group.

The control group refers to the group in which does not receive variables being tested.

This group is used to compare the results observed in the experimental group.

archaebacteria are found in in forest soil.

hope i spelled it right lol

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-lavira: )

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.