What is the most primitive form of life? a. viruses b. protozoa c. bacteria d. fungi e. parasites?

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles