High levels of biodiversity in the rainforest have resulted in a. low levels of competition for resources b. generalist organisms able to thrive in many environments c. optimal conditions for life to exist d. organisms specialized for living in a particular niche select the best answer from the choices provided

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form