What was the purpose of the vinegar in the third trial?

1. test the effect of raising pH on enzyme action

2. test the effect of lowering pH on enzyme action

3. serve as a control

4. served no purpose

What's is the cycle of matter?

What effect do carbon dioxide and methane have on Earth's temperature A. They trap heat in the atmosphere? B. They release heat from the atmosphere. C. They black beat from entering the ocean. D. They block heat from reaching Earth's surface.

What type of organic molecule comprises the majority of a potato? Monosaccharides Disaccharides Glycogen Polysaccharides

On earth viruses are not considered living systems because they cannot reproduce on their own ... what could we assume if we found viruses anywhere else in the universe

List the 3 basic steps/pathways to all of the sensory systems

Information from which a conclusion can be drawn or a prediction can be made are called

Which is bigger molecule or atom

What are the rocks in the rock cycle?

What's the most common type of mutation, and what impact does it have on natural selection?

How does convergent evolution works