The correct option is FIXATION.
Nitrogen fixation is the process by which atmospheric nitrogen are incorporated into organic compounds. Nitrogen fixation is typically carried out by specific micro organisms. Nitrogen fixation plays a very crucial role in the earth's ecosystem.
The cook should compare 3 and 4.
<h3><u>Explanation</u>:</h3>
Yeast is an unicellular fungi whose scientific name is <em>Saccharomyces cerevisiae</em>. This organism is an anaerobic fungi which performs alcoholic fermentation. The alcoholic fermentation is done by the enzyme zymase which is a mixture of different enzymes. This enzymes acts on glucose to form the ethyl alcohol and carbon dioxide from glucose.
Glucose - > 2 Ethanol + 2CO2.
In an open system, the carbon dioxide will evolve as gas and leave the system. So in the container with yeast, the container will loose weight but the other one won't loose any weight.
The three most important Mendel law is the law of dominance, law of segregation, and law of independent assortment. The law of dominance is when a trait is more recived or more dominate than other trait. For example a flower, if a flower is red most of the flowers will be red, but one will be white. The white flower has a recessive trait. The law of segregation is when a offspring randomly receive one allele of every trait from each parent. The law of independent assortment states that just because you received one allele doesn't mean another dominate allele will be passed also.