What are the three types of symbiosis? a. predation, mutualism, and parasitism b. mutualism, commensalism, and parasitism c. competition, predation, and commensalism d. parasitism, predation, and competition

Which represents a negative impact of technology

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

What is the primary function of the nervous system?