... through the diverseregions of the Americas (grasslands, eastern forests, coastal swamps) andneeded to adapt to their new environments .The migrants’ lifestyle hadevolved over the years to that of ... plants make theirown food by combining water, salts, and carbon dioxide in the pres-ence of light.Oxygen is a by-product of the process of photosynthesis.Parts of speechphotosynthesize v10. ... proportion to the priority of the task .The computer executes different sequences of tasks atdifferent clock cycles, thereby increasing the rate of output from a process.1.Why does the author...