It is extremely labor intensive and costly. :-(
Observations is the correct answer.
Improper temperature control is one of the primary causes of illness or diseases as if the temperature is not set right, it could make bacteria grow or expand which is potentially harmful especially if they are to consume food-- if you food is contaminated with harmful bacteria because of improper temperature control, it could cause the food to be contaminated or spoiled, when consumed, it could led the person to have food poisoning.
As soon as the neural tube is formed, the anterior<span>portion expands quicker than posterior, forming the primary brain vesicles: Prosencephalon (forebrain), Mesencephalon (midbrain), and Rhombencephalon (hind brain).</span>
