If drug a has an effect of 5 and drug b has an effect of 8, a purely additive combination effect would be equivalent to

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

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602