A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some organisms are very sensitive to pollution in their environment, so if pollutants are present, the organism may change its morphologyphysiology or behaviour, or it could even die. Hope that helped!
Answer:
B. Mosquitoes
Explanation:
Mosquitos have a parasitic relationship with other animals, which means that they benefit while the other is negatively affected.
Mono you can not get mono through drinking water and it’s a disease
In case of food service operation, the mangers need to take an extra care to maintain the hygienic structures, for this, they must be aware of all the conditions going on in the operation.
In case, a food service operation experiences the back flow of the sewage, the operation should be immediately stopped. Sewage water is very unhealthy and the bacteria in the sewage water can cause many types of illness, which can contaminate food.
So, it is very important that all the operations should be stopped immediately, till the sewage back flow is not cured and the area is thoroughly cleaned.
hence, the correct answer is Close the operation.
<span>The lumbar trunk and intestinal trunk return lymp at the cisterna chyli. The cisterna chyli is also known as the receptaculum chyli. It is a normal anatomical structure seen as a saccular area of dilatation in the lymphatic channels that is located in the retrocrural space, usually to the immediate right of the abdominal aorta.</span>
