What would be the difference in the rate of photosynthesis in December compared to July? (Remeber that December has the shortest amount of daylight and July has the longest amount of daylight each day.)

Photosynthesis requires sunlight for plants to make food. Therefore, the rate of photosynthesis in December would be slower than in July, since there is less sun in December :)

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;