Answer:
White owl is the symbol of wisdom. The snowy owl is the symbol of endurance. It represents big dreams along with the ability to achieve them. It is the sign of new beginnings and moving forward with all might.
The medulla oblongata is the part of the brain stem that regulates the bodily processes that are automatically regulated such as respiration and blood pressure. During respiration process, the medulla oblongata functions by detecting the level of carbon dioxide and oxygen in the blood stream and sending necessary signals in form of nerve impulses to the heart muscles and diaphragm for necessary actions. This shows that the respiratory system and the circulatory system work together and that is the reason why heart rate and breathing rate are both controlled by medulla oblongata.
The antibiotic was absorbed by the soil and disrupted the balance of the soil. The result was to kill some of the bacteria living in the soil, which were contributing to the growth of the soybeans. There are bacteria which participate in the process of nitrogen fixation, by providing usable nitrogen to the roots of the plants.