China and USA with 18 climate zones
The answer is: It allowed the farming society to dig up the dirt on their farms allowing a more effective and easy way to plant their crops.
The method of farming contributed by the invention of plow allow societies to produce more products with lesser amount of time (most popular one would be by combining it with animals such as buffalo or horses) . This invention help to address hunger problems that exist at that time and bring wealth and prosperity through the agricultural sectors.
<span>Natural selection affects predator-prey relationships in ecosystems in ways such as: A and B</span>
For a threshold is to be reached then there should be generation of numerous (EPSP) which must arrive at initial segment.
- Excitatory postsynaptic potential can be regarded as a postsynaptic potential which aids the action of postsynaptic neuron and activate it so that it can fire an action potential.
- However, to numerous number of this (EPSP) needed to be generated for threshold to be reached during the process.
We can conclude that the higher the generation, the higher the effectiveness.
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C.... Independently rules, so not a kingdom (many cities), not a civilization (multiple cities), and not empire for the same reason.