The overuse of antibiotics has led to a) the extinction of viruses. b) the extinction of bacteria. c) new antibiotic-resistant populations of viruses. d) new antibiotic-resistant populations of bacteria.

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

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

Because water is a polar molecule it makes an excellent solvent for atoms and compounds found within cell and tissue. water acting as a solvent in organisms, aids in all of the following except