Answer:
C
Explanation:
Swollen lymph nodes usually indicate a common infection, but they can also signal a medical condition, such as an immune disorder or, rarely, a type of cancer. Lymph nodes are small, round structures that play a vital role in the body's immune system.
Answer:
Pulmonary plague, septic plague and bubonic plague.
Explanation:
So, Yersinia pestis is a rod-shaped bacterium. This microorganism can affect humans through the flea Xenopsylla cheopis. Then, the disease can manifest in three ways: pulmonary plague, septic plague or bubonic plague.
Pneumonic plague is the form of the disease that infects the lungs and its symptoms begin abruptly two to three days after exposure to bacteria. Patients have a high fever, chills, fast heart rate and often severe headaches.
Another form of the disease is the septicemic plague and the infection spreads in the bloodstream. The most common symptoms are nausea, vomiting, diarrhea, and abdominal pain.
Finally, bubonic plague, or also known as the minor plague, is a milder form of the disease that affects the lymphatic system and its symptoms are swollen lymph nodes, fever, headache, and exhaustion.
Answer:
Geographic isolation
Explanation:
Geographic isolation occurs when a population is split by geographic factors, such as the flood mentioned. They can become separate species over time and will no longer be able to produce viable offspring. Hope it helps :)
Answer:
The debate over the use of GM foods started ever since the production of the first GM foods. Supporters of the GM foods tell that the GM foods have been thoroughly tested and approved by the FDA and in the long term they will be the best strategy to overcome malnutrition as the population is rising rapidly. Critics of the GM foods explain the threat that these foods can lead to the natural varieties to become extinct, As a result, there would be no variations among crops which could be a concerning and threatening situation. Also, they are concerned that it might happen that over the long term GM foods might be harmful.
Genetic medicines although properly tested may show differential results when used on people or may give rise to certain other conditions which the humans are unfamiliar for now.
<span>Matter is recycled within and between ecosystems through biogeochemical cycles.
Hope this helps</span>
