1. bio degradation
2. bio magnification
3. recycling
4. eutrophication
bio magnification
1. cocidiasis
2. monilliasis
3. coryza
4. mareks
monilliasis
1. Wallago attu
2. Tor tor
3. Clarius batrachus
4. Scolidon
Tor tor
1. mercury
2. arsenic
3. manganese
4. chromium
manganese
1. actin
2. myosin
3. cholesterol
4. tissue fluid
cholesterol
1. Macronucleus
2. Micronucleus
3. Both of them
4. None
Micronucleus
1. Small fishes
2. small molluses
3. floating algae
4. mosquito larvae
mosquito larvae
1. Paleozoic era
2. Cretaceous
3. Mesozoic era
4. Miocene
Paleozoic era
1. Marine nonpoisonous snakes
2. Marine poisonous snakes
3. Fresh water snakes
4. Terrestrial snakes
Marine poisonous snakes
1. 3rd supra labial touches the nose and eye
2. presence of hood
3. Small scales on head
4. round tail
presence of hood