Fungi are mostly
A fresh water green alga, rich in protein is
The Reaction between Glucose→ 6- Phasphogluconate in 3P calalysed by
Cyclic photophosphorylation produces
Which of the following bacterium is photosynthetic free living aerobic nitrogen fixer ?
The atmospheric nitrogen is not available to plants. There are some nitrogen fixing bacteria which converts atmospheric nitrogen into ammonia which is readily available to plants. Anabaena is a free-living as well as symbiotic nitrogen fixing bacteria. Clostridium is a free-living, anaerobic nitrogen fixing bacteria. Azotobacter are free-living, aerobic, and non-photosynthetic nitrogen fixing bacteria. Rhizobium is non free living symbiotic nitrogen fixing bacteria.
Thus, the correct answer is 'Azotobacter.'
After fertilization the zygote of a seed plant becomes
“Little leaf disease” in plant and "Khaira disease" in Rice caused due to deficiency of a
Diplentism occurs in a member of
The cell wall is absent in
A mantle is
The mantle cavity functions as a respiratory chamber in most molluscs. In bivalves it is usually part of the feeding structure. In some molluscs the mantle cavity is a brood chamber, and in cephalopods and some bivalves such as scallops, it is a locomotory organ.
Hence, the correct answer is option C.