Match the researchers with their discoveries. Demonstrated the phenomenon of transformation, but did not identify the transforming principle. Answer 1 Identified DNA as the genetic material in bacteriophages. Answer 2 Determined the structure of DNA. Answer 3 First to isolate DNA. Answer 4 Demonstrated that changes in DNA and protein were colinear. Answer 5 Identified DNA as the transforming principle. Answer 6 Identified that DNA for yeast consisted of an equal amount of purines and pyrimidines.

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.