<span>Yeasts are unicellular microorganisms that use sugar as food releasing carbon dioxide. With the released gas increases the pressure when oxygen is present inside the bottle, yeasts grow by the breathing process are consuming oxygen and producing carbon dioxide. And when the oxygen is finished the yeasts change to anaerobic metabolism and the degradation of sugar occurs by fermentation that produces greater amounts of alcohol and gaseous carbon dioxide.</span>
They only looked at one school which is not representative of all students in schools. There could have been an illness going around at this particular school but they have nothing to compare their results to. There should be a control group of students at normal temperatures to compare results of the temperature difference effect also.
I believe the answer is 90%.
~Good luck!
The fact that they can breed but cannot produce fertile offspring shows that they are different species. T<span>hey may have different characteristics which means they cannot breed </span>successfully, too.
I hope this helps! :-)
xo Leafling
Answer:
Thymus gland
Explanation:
The thymus gland in the chest is where lymphocytes develop.