1 Amphibians tend to be very pollution sensitive due to the fact that they absorb chemicals in the water through their skins; this is one reason why many amphibian populations are in distress today. 2  With addition of detergents to the eco-system, insects that normally have the ability to walk on water will be unable to.ther organisms are highly tolerant to pollution of their environments, among these are aquatic worms, leeches, and snails. As a rule, as complexity increases, tolerance to pollution decreases.
A hernia is the exit of an organ, such as the bowel, through the wall of the cavity in which it normally resides. Hernias come in a number of different types. Most commonly they involve the abdomen, specifically the groin. Groin hernias are most common of the inguinal type but may also be femoral. Other hernias include hiatus, incisional, and umbilical hernias. For groin hernias symptoms are present in about 66% of people. This may include pain or discomfort especially with coughing, exercise, or going to the toilet.
Hiatal hernias are categorized as being either sliding or para-esophageal. Sliding hiatal hernias. Sliding hiatal hernias, the most common type of hernia, are those in which the junction of the esophagus and stomach, referred to as the gastro-esophageal junction, and part of the stomach protrude into the chest.