Plant Growth And Development Ques 9
9. If a tree, flowers thrice in a year (Oct., Jan. and July) in Northern India, it is said to be [1997]
(a) photosensitive but thermoinsensitive
(b) thermosensitive but photoinsensitive
(c) photo and thermosensitive
(d) photo and thermoinsensitive
Show Answer
Answer : d
Hints & Solutions
(d) In northern India, during these months maximum variation in light intensity, duration and temperature is observed. Hence, only plants that are photo-and thermoinsensitive can flower during these months.
BETA
