Paleontologist and embryologist J. G. M. "Hans" Thewissen noticed that the ear bone of Indohyus (a deer-like mammal) that had broken off in his lab was razor thin on one side and very thick on the other, making it unlike the ear bone of any other land mammal. Ultimately, this discovery shed light on the evolutionary history of whales. Which statements about whales and Indohyus are correct?

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

What do you call the long folded tube inside the body attached to the stomach where nutrients in the food are absorbed?