What kind of mutation occurs when one base is changed to another at a single location in the dna?

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

What is the ecological role of food chains and food webs

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f