Water pollution of a river is measured by_______
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Study of inter relationship between living organism and their environment is called _______
A true species in mauritius failed to reproduce because of the extinction of a fruit eating bird. Which one of the following was that bird?
Genes are situated on _________
In which of the following kind of organisms is the phenomenon found where in the female kills the male after copulation __________
Branch of science which deal with the study of causative agent of disease is __________
Tikka disease is related with the crop:
Flowers in which polllination takes place by insect their pollen grains are ________