Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Question: When did new plants start sprouting after the forest fire? Answer: two months later
Secondary Succession. Two months after a forest fire, new plants are already sprouting among the charred logs.

Question: Which kind of flowers carry both male and female floral organs? Answer: perfect flowers
Figure 14.25 This image depicts the structure of a perfect and complete flower. Perfect flowers carry both male and female floral organs. (credit: modification of work by Mariana Ruiz Villareal).

Question: What were the first vertebrates to evolve? Answer: fish
Fish were the first vertebrates to evolve. The earliest fish lived in the water, and modern fish are still aquatic.