(100 points) The model represents the change in the DNA content of a cell during the cell cycle.
Which part of the model represents the S phase?

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

How does the structure of dna hold the information needed to code for the many features of multicellular organisms?