Which of the following statements is incorrect about enzymes? A Enzymes can be used over and over again
B Enzymes increase the activation energy needed for a reaction to occur
C Enzyme allow reaction to occur at moderate temperature
D Enzymes bring together particular molecules and cause them to react with one another

Witch theory suggests all living things are made up of cell or cells

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.

An infection of the pulp and the surrounding tissue in the mouth is called