Answer:
Non Voluntary action...........
Answer:
The concept of carrying capacity is that an ecosystem can only support so much life while keeping in balance because there are a limited number of resources.
If you live in Texas then you live in the Grasslands. (Also called the Temperate Grasslands)
A mutation. Adaption and resistance - evolution, essentially. Those who survived the antibiotic developed a mutation which was able to resist the antibiotic and this became passed down to offspring.
Hope this helps!