Scientific hypotheses differ from scientific theories in that they are A tentative explanations that need further evaluation
B not subject to proper investigation and testing
C arrived at after extensive mathematical modeling
D widely accepted descriptions of what we find happening over and over in nature
E tentative explanations that need further evaluation and not subject to proper investigation and testing

A tentative explanations that need further evaluation

Explanation:

In scientific experiment, hypothesis and theories are used. Both are important but significantly different from one another. Scientific hypothesis is a tentative explanation to a problem that needs further evaluation by testing via experimentation. This means that a hypothesis must be testable and subject to proper investigation.

On the other hand, theories are tested explanation. That is, theories are not subject to testing because they are well backed up by data.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements