Why is DNA a useful form of evidence for developing a phylogenetic tree? a) DNA never changes
b) DNA is the newest thing in science
c) DNA is passed from generation to generation ​

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

List two modern organisms that have pentameral symmetry

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote