Answer question 1 or 2 or both
1. name at least two extinct species that share a close evolutionary relationship with humans.

2. explain the similarities and differences that exist between these species and humans. is the fossil record complete for humans? explain your answer.

Homo neanderthalensis and Homo Sapiens idaltu. Beyond physical differences, it’s difficult to say how Neanderthals differed from modern humans. The clues we do have come from their genome. The ancient hominins shared about 99.7 percent of their genetic material with us, meaning they were mostly human in this regard. How the rest differed is largely unclear, though we do have some ideas. The fossil record is incomplete. Of the small proportion of organisms preserved as fossils, only a tiny fraction have been recovered and studied by paleontologists. In some cases the succession of forms over time has been reconstructed in detail.

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.