Nova Season 5 Episode 2 – The Green Machine

Air Date : Jan 11 1978 | 72 Views | 0 comment(s)

Watch Nova season 5 episode 2 online. Botany is a neglected science and plants are all around us, but unfamiliar. NOVA examines our state of knowledge of how plants work: growth hormones, responses to light and shade, photosynthesis, root mechanisms and twining responses.

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