To make a cake, you combine flour, yeast, sugar and eggs. after mixing the ingredients, you place them in a pan in the oven to cook. the breaking and then the mixing up of the eggs is a) a solution. b) a compound. c) a chemical change. d) a physical change.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.