Explain the difference from producers and consumers and give 3 examples of each.
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How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Can someone i have no idea of how to do this.

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.