Snapdragons, a flowering plant popular with gardeners, can have red, white, and pink colored petals. when snapdragons with red petals (rr) are crossed with snapdragons having white (rr) petals, the offspring have pink petals. the pink coloration (rr) is a phenotype in between the red and white parental phenotypes. what is this kind of inheritance pattern called? a) classic dominance b) bipolar inheritance c) incomplete dominance d) recessive inheritance 8) among a species of butterflies, the color blue (b) is a dominant trait. yellow color (b) is a recessive trait. if a pure blue butterfly (bb) mates with a pure yellow (bb), what will the offspring look like?

true, generally referred to as invasive species given that they have no natural predators in new environment

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.