A new megastigmane glycoside, grasshopper ketone 3-O-primveroside (1), was isolated from the methanolic extract of the whole herbs of Sinocrassula indica (Crassulaceae). Its structure was elucidated on the basis of spectral and chemical evidence.
What is Evolution? QUESTION: What is evolution? ANSWER: Evolution is technically defined as: a gradual process in which something changes into a different and usually more complex or better form. As it is most famously used, evolution is the process by which an organism becomes more sophisticated over time and in response to its environment. The Theory of Evolution is currently the most popular concept of how life reached its current state. Evolution as a biological mechanism is driven by natural selection.
development - a process in which something passes by degrees to a different stage (especially a more advanced or mature stage); the development of his ideas took many years; the evolution of Greek civilization; the slow development of her skill as a writer. evolution.