When we hear the word bacteria, the first thing that comes to mind is infection of some kind. But bacteria are also beneficial to man. Can you choose the statements that correctly describe the beneficial roles bacteria play in our lives?
Decompose organic wastes into humus which can improve soil fertility.
Bacteria in human colon synthesize vitamins B and K.
Used in the pasteurization of the milk we drink.
Used in the preparation of some dairy products like yogurt and buttermilk.
Fixes atmospheric nitrogen so it can be used by other organisms.
Used as a form of cattle feed on large farms when village runs low.

answer: glucoamylase presented optimum activity at temperature of 55â°c, and, in the glycosidic bonds from the non-reducing ends of starch, resulting in the production of glucose. source and type of fermentation can affect the enzyme's properties

credit to kalahira

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.