While some insects, like moths, spin a cocoon, a butterfly uses a chrysalis, which is essentially hardened skin. Different species of butterflies stay in the chrysalis, or pupal stage, for different periods of time. This can range from about seven days to more than a year, but for a large number of species it is less than 30 days. The well-known monarch butterfly, for example, spends between nine and 14 days in a chrysalis, while the painted lady butterfly spends only seven to 10 days in the chrysalis.
What was the Stephen A Douglas doctrine of popular sovereignty? In a nutshell, it stated that slavery in Kansas and Nebraska would be decided by popular sovereignty, which is pretty much where the people would decide on the matter with a m â¦ ajority.
The Kansas-Nebraska Act. Stephen Douglas, the sponsor of the Kansas-Nebraska Act as well as the most vocal supporter of popular sovereignty, was known as the Little Giant because of his small stature. The Kansas-Nebraska Act of 1854 may have been the single most significant event leading to the Civil War.