All I know is that
The net gain of ATP to the yeast cell is two molecules–-the two molecules of ATP normally produced in glycolysis. Yeasts are able to participate in fermentation because they have the necessary enzyme to convert pyruvic acid to ethyl alcohol.
Because scientists can only speak out on what they know, and if they don't know than they can't say it.
The answer is: lipids store more energy than carbohydrates.
Lipids are the long-term energy storage. This is because they consist of much higher proportion of hydrogen. So, they are easier to store than carbohydrates and have more energy for their weight.
Answer:
I believe through 'Natural Selection'. This occurs through the following steps
1) Genetic Variation
2) Over-Production
3) Struggle for existence
4) Survival of the fittest
5) Advantageous characteristics passed on to offspring
Hope this answered your question.
When a fungus on the roots of a plant helps absorb nutrients it needs from the soil, while the fungus gets what it needs from the plant, this is a single symbiotic relationship. <span />