Scientific research may be defined as a systematic, controlled, empirical, and critical investigation of hypothetical propositions about the presumed relations among observed phenomena. This definition contains the basic terms necessary in defining the method of scientific research, and describes a procedure that has been accepted for centuries. However, regardless of its origin, all research begins with a basic question or proposition about a specific phenomenon. For example: Why do viewers select one television program over another?
Scallops come from sandy or muddy bottoms of most seas and oceans.
Sea silk was produced in the Mediterranean region from the large marine bivalve mollusc Pinna nobilis until early in the 20th century. The shell, which is sometimes almost a metre long, adheres itself to rocks with a tuft of very strong thin fibres, pointed end down, in the intertidal zone.