How many chemical changes occurred in this scenario?
Justin is making a snack. He toasts a piece of bread and
spreads peanut butter and jelly on it. Then he cuts an apple
into several slices and adds these to his plate. Next, Justin
mixes a scoop of lemonade powder into a glass of water,
mixes it, and adds ice.
two
three
four

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.