1. which of the following correctly compares the changes that take place in an ecosystem during primary succession and secondary succession? (2 points) a) primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster. b) primary succession takes place quickly on newly formed land, while secondary succession occurs over a long period of time in an area that has been disrupted by a natural disaster. c) primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land. d) primary succession takes place quickly in an area that has been disrupted by a natural disaster, while secondary succession occurs over a long period of time on newly formed land. 2. which of the following is an example of how a biotic factor can affect the population dynamics in an ecosystem? (2 points) a)lack of water during a drought causes many of the individuals in a population to die. b) seasonal temperature changes cause a species to migrate between two ecosystems. c) excessive rain and flooding cause organisms in an area to relocate. d) the population of a predator increases following an increase in the population of its prey.