When Algae lives on a sloth, it is considered a mutual symbolic relationship. why is this an example of mutualism?

The science for classifying and naming organisms is known as

Which of the following is a true statement? question 8 options: populations can't evolve, only individual organisms. individuals have adaptations that can change over time. individuals have traits that may or may not make them successful at reproduction. individuals evolve to have adaptations.

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?