Which of the following is an example of a chemical change? a. water evaporating from a puddle on a hot day b. burning a piece of toast c. cracking open an egg and removing the yolk d. steam condensing on the bathroom mirror

What must happen before a body cell can begin mitotic cell division

Express the following number in scientific notation. 0.026890 =

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d