Standard sea-level pressure in millibars is

a. 750.1
b. 980.5
c. 1,000
d. 1,013.2

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem

D.) domain, kingdom, phylum, class, order, family, genus, species