Which of the following best defines a hypothesis? a. a testable statement that is capable of being supported or refuted by scientific evidence b. a well-established and highly reliable explanation of a natural phenomenon c. a scientific fact that has been tested by multiple scientists under various conditions d. a widespread opinion that cannot be tested through scientific research

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2

Does any one know what blood tastes like