There is a change in amino acids sequence causes these mutations, If there is an error in the order of amino acids during the process of multiplication, there is a special enzyme to repair errors
Well if it could not adapt it would die. Either it would be killed by a more superior species, natural selection would take its course, or it just wouldn't be able to survive.
Proteins
Proteins is the most thermogenic of all nutrients and macromolecules we eat. Thermogenesis is the generation of due to digestion and metabolism of food. Studies shows that proteins tend to be more thermogenic that carbohydrates and fats. This means that the calorie given of by proteins is converted and released as heat and less available for storage. This means that the stored energy formed from protein much of it is released as heat and unlike other macromolecules few of it is converted to a energy that can be stored.
It would be Primary because the lake is it’s starting point and the pollution grew all the way to the factory.
