Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Organisms may contain up to five levels of organization within their bodies. which level of organization is shown by the liver? a. tissue b. organ c. organism d. organ system

Electrochemical cells provide energy by allowing electrons to flow through an external circuit to electrodes contained in an electrolyte