Is reproduction necessary for the survival of an individual

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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

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.