Today, most of us rely on "external brains to: O A. remember our own names O B. indicate when we are tired O C. communicate with others O D. tell us when to swallow food .

What does resonance result in? quieter sounds frequency amplitude louder sounds

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Which are reasons cells undergo cell division?