Plant responses to light are multiple. Light is an energy source, converted to sugars by photosynthesis. It is also a signal sensed by specific photoreceptors for red, blue and UV-B radiation ...
Eutrophication is a leading cause of impairment of many freshwater and coastal marine ecosystems in the world. Why should we worry about eutrophication and how is this problem managed ...
(a) Why do farmers prefer biofertilizers to chemical fertilizers these days? Explain. (b) How do Anabaena and mycorrhiza act as biofertilisers? 12.EcoRI is used to cut a segment of foreign DNA and ...