Reconstructing trees: Cladistics. Cladistics is a method of hypothesizing relationships among organisms  in other words, a method of reconstructing evolutionary trees. The basis of a cladistic analysis is data on the characters, or traits, of the organisms in which we are interested.ladistics is a method of hypothesizing relationships among organisms  in other words, a method of reconstructing evolutionary trees.
Adenosine triphosphate (ATP) (shown in Figure 1) is the main molecule used for energy transfers and transport within cells. It is also one of the monomers used in the synthesis of RNA and, after it is converted to deoxyATP (dATP), in the synthesis of DNA.
Using ATP in Healthcare Settings. Adenosine triphosphate (ATP) is an enzyme that is present in all living cells, and an ATP monitoring system can detect the amount of organic matter that remains after cleaning an environmental surface, a medical device or a surgical instrument.