Final answer:
Different adaptive trends will likely be favored as the climate becomes wetter and cooler, leading to evolutionary adaptation in both flora and fauna to cope with the new environment.
Step-by-step explanation:
If the climate shifts in the opposite direction and becomes progressively wetter and cooler, then different adaptive trends will probably be favored in the new climatic environment. Over time, species will undergo evolutionary adaptation to these changes, with selection pressures favoring traits that are advantageous under cooler, wetter conditions.
This could result in the evolution of plants with broader leaves that prioritize light capture over water retention, or animals developing behaviors and physical traits more suitable to a colder and damper ecosystem. The exact changes would depend on the species and the specific environmental shifts they encounter.