Etapa 1: a solução nutritiva é colocada no flasco Objetivo:
Etapa 2 e 3 : o gargalo do frasco é curvado em "s'" ao calor da chama e a solução é fervido fortemente durante alguns minutos.
Objetivo:
Etapa 4 : A solução é resfriada lentamente e permanece estéril muito tempo .
Objetivo:
Etapa 5 : gargalo é quebrado .
Objetivo:

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.