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Practice question

Question

The phenomenon of photoperiodism was first reported by:

Options

Choose one · Correct answer highlighted

Explanation

Correct option is B, Garner and Allard. In PHOTOPERIODISM problems like this, the accurate statement is Garner and Allard; the others are common mix-ups. Not these: A) Darwin; C) Bünning; D) Went. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.