Which body system protects some of the internal organs, such as the heart and lungs, from physical injury?

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

2. which is the last step in the scientific method?

During binary fission, what events must occur before the cell splits into two new cells?