How is a food web different from a food chain? a)food webs contain only producers, not consumers b)food webs do not include decomposers c)food webs contain many different, linked food chains d)food webs exist in aquatic environments; food chains exist in terrestrial environments

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.