Darwin hypothesized that there are definite steps to natural selection. consider the model for natural selection. describe a scenario that represents this model of natural selection according to darwin.

In a population of bacteria, variations exist due to mutation. The bacteria are subjected to antibiotics. Some bacteria die; others survive and reproduce. Eventually, the bacteria a resistant to the antibiotics.

Explanation:

Darwin would say: In a population of bacteria, variations exist due to mutation. The bacteria are subjected to antibiotics. Some bacteria die; others survive and reproduce. Eventually, the bacteria a resistant to the antibiotics.

the answer for apex is "1 and 6"

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.