A) Tolypothrix
B) Chlorella
C) Nostoc
D) Anabaena
Correct Answer: D
Solution :
Anabaena is a free living nitrogen fixing cyanobacterium which can form symbiotic association with water fern Azolla.Blood groups | Antigen on RBC | Antibodies in serum |
A | A | anti b |
B | B | anti a |
AB | A&B | ? |
O | ? | anti a & anti b |
You need to login to perform this action.
You will be redirected in
3 sec