Statement about stomata is true? a. the number of stomata is greater on the upper surface of the leaf. b. the number of stomata is greater on the lower surface of the leaf. c. the number of stomata is equal on both surfaces of the leaf.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.