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.
Locked in controversy is the Capture Theory. It is this theory, we shall examine, because certain aspects of mankind's theory are true. Consensus states that the Moon s original orbit or drift through the solar system brought it close enough to the Earth s gravitational field to be captured. In a close examination of this theory, there are several factors, which need to be considered, starting with the angle of orbital approach.