They need it to grow healthy
Answer AND Explanation:
The islands had different environments, and the organisms had adaptations that enabled the organism to live in those environments. The island had been inhabited by its own kind of species found nowhere else in the world. Darwin also noticed that considerable variation exists between members of the same species. Offspring vary from their parents and between themselves.
Reptiles are ectotherms and cannot raise their body temperature above that of the environment.
C: Exposing the plant to a higher light intensity
