Choose the correct word for each of the three boxes in the text below. Species today are cold-adapted. They survived the glacial periods and for the last 2.5 million years, have had no selective pressure to maintain traits that allow them to survive in warm temperatures. To find temperatures as high as the ones we have today, you must go back [ Select ] ["1", "5", "15"] million years. To find temperatures as high as those expected in 2100, you must go back [ Select ] ["10", "25", "50"] million years. The question is whether species today still have the traits to survive in these high temperatures. Their ancient ancestors did live in a warm world, but it has been millions of years since the world was that warm. Do the species still have those original warm-adapted traits in their genes, or were these genes lost over the years? If the genes were lost, or if species cannot move their ranges fast enough to track their habitat as it moves toward the poles and up mountains, then species will [ Select ] ["adapt", "diverge into new species", "go extinct"] because the temperature rise is occurring at such a fast rate it is unlikely that species will be able to evolve warm-adapted traits fast enough..