A) A sound wave
The other 3 create mutations, are cells are hit by sound waves all the time and experience no mutations because of it
Pi and sigma bonds
Pi is double bonds and sigma is single bonds
Answer: b. classify all organisms into monophyletic groups.
Explanation:
The modern taxonomy is the study of classification of organisms which classified the organisms on the basis of ancestral relationships, reproduction, morphology and behavior to identify the living organisms on earth and group them together. This is the scientific basis for classifying the species.
The classification of organisms into monophyletic groups is one of the criteria for classification in modern taxonomy. In monophyletic group or clade is a group which includes the descendants that belongs to the common ancestor. The organisms of the group share derived characteristics like morphological similarities, mode of reproduction and similarities at the genomic level.
Diffusion because it requires no energy
