In an experimental investigation, the variable that the researcher changes or manipulates in order to see its effects is called the variable.

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a. both make it possible for the conditions in the interior to be different from the conditions outside. b. both provide a barrier that keeps water from flowing across it so the interior remains dry. c. both separate the rna that forms in the interior from any rna that might form in the environment. d. both can actively move molecules into the interior or out into the surrounding environment.

Place the steps tor the formation of the enzyme pepsinogen in correct order

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a