Consider the food chain of grass → grasshopper → mouse snake → hawk. about how much of the chemical energy fixed by photosynthesis of the grass (100 percent) is available to the hawk? consider the food chain of grass → grasshopper → mouse snake → hawk. about how much of the chemical energy fixed by photosynthesis of the grass (100 percent) is available to the hawk? 1% 0.01% 0.1% 10%