8. Construct a response to the following question: Why do levels of productivity change based on location and time of year? In your explanation, be sure to include: An explanation of productivity and its relationship to photosynthesis (circle!) The inputs and outputs of photosynthesis (highlight!) How abiotic factors can influence photosynthesis (highlight!) Evidence! Use data from the GPP map and biome map on Canvas (underline! . How will this be graded? Read the rubric here. Need help writing? Try using some of these Sentence Starters here.