Answer 3 questions: which factors are most likely to limit the growth of the coral reef in the caribbean? high rainfall and clear waters low rainfall and excessive sunlight high moisture and excessive sunlight extreme temperature and cloudy waters a scientist is designing an investigation to study the impact of predatory trout on the population of the mountain yellow-legged frog in a recreational nature park. what is most likely the test variable (independent variable) for the study? frog population plant population trout population tourist population how does the theory of evolution disprove the belief that natural selection prepares an organism to adapt to its environment? natural selection occurs before changes in the environment. a population changes in response to a change in the environment. environmental changes can be predicted based on changes in a population. natural selection leads to the survival of the population with the most complex traits.