The activities of enzymes are determined by their three dimensional structure. which of the following gives a three dimensional structure to an enzyme? folds of long, linear chains of amino acids folds of long, linear chains of fatty acids folds of long, linear chains of covalent hydrogen bonds

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

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.

The cluster of developing cells from conception until birth is called an