Which of the following is not one of the 4 main principles of Darwin's theory of evolution?

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give