Afew members of a population are immune to a disease that kills many others. they survive and reproduce. what is this an example of? a) variation b) survival of fit individuals c) overproduction d) none of the above

The few individuals of the population where immune to a certain disease. The desease killed the rest of the population, and only some (immune individuals) remained alive.

The survivors, reproduced giving birth to offspring with the same resistance, making the whole/big part of the population resistant to the desease (the resistance was inherited from the parents).

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The Sewage and Farm runoff are both entering the ocean in the largest amounts due to overpopulation, when a city gains more people, the farms need to produce more, while the smaller farmers' markets are trailed behind during this process, the larger companies using mass production take over, creating waste that leads to the ocean. When this happens, and more people are coming in, they create more waste, from washing hands, dishes, showers, to using the restroom, it all leads into one large sewage system, which leads out to the ocean.

It's a big cycle, all leading to the demise of the ocean