They will become extinct over time. This is because they
will be unable to survive in the changed environment due to lack of desirable traits. This is especially true for a small population of
species that do not have a wide variation in their genotypes on which natural selection
could act upon.
Fever indicates that your body's immune system is doing its job because of two key reasons. One is due to the fever creating a "speed up" in white cell production and the other is due to the fever actually destroying harmful bacteria.
he Industrial Revolution made machine-based manufacturing more common, and increased the population and average income. Instead of farming, people came to cities to work. The millions of workers moved from farms and cottage industries to cities; which caused rising population.
