. . "Films for the Humanities & Sciences (Firm)" . . . "Educational films"@en . "Educational films" . "Using laboratory experiments and examples from a greenhouse, this program explains the structure and function of roots and stems."@en . "Using laboratory experiments and examples from a greenhouse, this program explains the structure and function of roots and stems." . . . . . . . . "Using laboratory experiments and examples from a greenhouse, this program explains the structure and function of roots and stems. (15 minutes)."@en . . . "Roots and stems" . "Roots and stems"@en . . "Internet videos"@en . . "Internet videos" . "Roots and Stems"@en . "Videorecording"@en . "Videorecording" . . . . . . .