How can you tell the difference between two organisms that are indistinguishable on the basis of appearance and structure?

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph

Isolated volcanic peaks on the ocean floor are

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b. organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.