Which experiment might be performed by a biologist who is interested in determining which plant organs (stems, buds, leaves, etc.) are responsible for sensing photoperiod?
◦ Measure auxin levels in different parts of the plant before and after exposure to light.
◦ Expose the plants to different wavelengths of light.
◦ Cover different plant organs with a foil covering to prevent light exposure.
◦ Remove the apical meristems from different parts of the plant.