Cell phone company a charges $20 each mouth plus $0.03 per text cell phone company b charges$5 each mounth pluse $0.07 per text

This is a new idea, more effective device or process. this an be viewed as the application of better solutions that meet new requirements, inarticulated needs, or existing market needs. what's the term?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.