Escherichia coli, or e. coli, is a species of bacteria. entamoeba histolytica, or e. histolytica, is a single-celled amoeba. what do e. coli and e. histolytica have in common?

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.