What if my hypothesis is that there is no difference?

Karen is working with an unknown organic substance. She mixes a sample of the substance with Benedict's solution and heats it. The mixture changes from blue to a orange/red color.

What is the mass of an atom that has 4 protons, 5 neutrons and 4 electrons? 5 8 9 13

The speed of sound waves through two different media, steel and air, was recorded. According to the graph, sound waves travel A) through steel, but not through air. B) faster through steel than through air. C) faster through air than through steel.

The food we eat contains chemical energy. What kind of energy is contained within the molecules of a candy?

Does the half-life of a material increases with the amount of material present?

What does a heart need to function

What did Darwin conclude about the finches on the Galápagos Islands that later supported his theory of evolution

Question from Campbell Biology Chapter 23: A large population of laboratory animals has been allowed to breed randomly for a number of generations.

the mitochondria, where cells energy is made, is often considered to be the cells control system (t or f)

Calculate the volume of blood moved per minute by a heart at rest. enter your answer as a whole number (in ml). do not include a comma in your answer. (example: 2600; not 2,600)