Which of the following is a definition for plant succession?

a. a community of living things together with their environment
b. the process by which one plant replaces another
c. the process in plants by which sunlight is converted to energy
d. a situation where everything is best suited for the current conditions

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service