Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
chloroplasts cilia ciliated grouped together hollow tubes large surface area length neurones palisade root hair cells special tissue top wave work together to do a job xylem