Pollination is an example of ________. Question 27 options: a possible source of new drugs chemical diversity an ecosystem service crop pest control none of the above Question 28 (3 points) Which of the following is considered an omnivore? Question 28 options: wolf human mushroom cow Question 29 (3 points) What are groups of multiple different species interacting together called? Question 29 options: ecosystem community population biosphere Question 30 (3 points) Prior to publication, what must a journal article undergo to ensure reliability of information? Question 30 options: social media review companion review entry-level review peer review