The began with the simplest of technologies such as pointed digging stick to break up the soil. These processes really took off when people harnessed animals to pull a plow, which was an even more efficient tool for the same task. With this new technology, one family could grow enough crops not only to feed themselves but also to feed others.

2%? i tried finding the exact sorry if it's not 100% correct ; -;

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.

b) the inside picture would look at a very high temperature in a very low ph