The correct answer is C. sewage discharge.
Even though there might even be no harmful pathogens at all if there isn't any waste, it is correct because it is implied that there is waste such as fecal matter inside of the sewage discharge.
<span>This would be a severe case. 12 percent of the body is roughly the size of the face. Imagine having your entire face covered with psoriasis. Psoriasis creates large, flaky scales and redness of skin, and can even be painful when the patient also has psoriatic arthritis. This patient should seek medical treatment.</span>
DNA stands for Deoxyribonucleic Acid. DNA holds genetic information that determines and organisms traits. DNA contains the instructions for making proteins.
Answer:
Air, water life without these is nothing
Frog RBCs contain a DNA-bearing nucleus that is visible in the center of the cell. Human RBCs do not possess nucleus along with other cell organelles such as mitochondria, Golgi apparatus and endoplasmic reticulum in order to accommodate greater amount of haemoglobin in the cells. Denucleation of rbcs is an adaptation, Which makes the mammalian red blood cell effective at transporting oxygen/eliminating CO2.