While riding in the turbolift with the sick boy's brother, Data reaches over to the right side of the door and indicates a new destination. The control panel on the turbolift did not exist in the three previous seasons, and it was never seen again.
When the bridge crew finally regains control of the bridge, Worf scans the planet looking for Data and reports that the ship's scanners have detected only one "life form"...and that it is human. Either the scanners aren't working very well or Worf isn't very skilled at using them because, a short time before, a brief shot of Data approaching Dr. Soong's house on the planet showed Data walking through dense jungle-like foliage. Not only did the foliage contain what appeared to be hundreds of different green plants and trees, in the background could clearly be heard- rather loudly- the sounds of numerous insects and birds. Do these plants, trees, insects, and birds not qualify as "life forms"?