Question 15 an analytical chemist is titrating of a solution of ammonia with a solution of . the of ammonia is . calculate the ph of the base solution after the chemist has added of the solution to it. note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of solution added.

b

explanation:

mitosis

the right answer is eat other organisms.

nitrogen is an essential nutrient for plants that need it to grow. it is part of the composition of amino acids (and therefore proteins) as well as in the composition of nitrogenous bases (dna and rna).

some plants (producers) have the ability to fix nitrogen from the air in the soil, making it available to plants.

these plants (producers), called "nitrogen fixing plants", are mainly legumes, plants whose fruit is a pod (pea, bean, clover, lupine, alfalfa, vetch,

herbivorous animals (primary consumers) will feed on these plants in order to obtain the nitrogen necessary for their survival.

explanation: