A new cancer drug has been developed that keeps cancer cells from replicating their DNA. At which checkpoint should the drug interrupt the cell cycle to keep DNA from replicating? 1. 1 Checkpoint
2. 2 Checkpoint
3. 2 and M Checkpoint
4. M Checkpoint

Which sequence correctly shows the path of carbon dioxide during repiration?

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

Regarding most of the narrator’s story, which word best describes the tone?