MCQ
Which is the correct sequence in the food chain in a grassland
- AGrass $→$ wolf $→$ deer $→$ buffalo
- BBacteria $→$ grass $→$ rabbit $→$ wolf
- ✓Grass $→$ insect $→$ birds $→$ snakes
- DGrass $→$ snake $ →$ insect $→$ deer
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$I.$ Methanogenic bacteria are commonly found in the anaerobic sludge formed during sewage treatment
$II.$ These bacteria are also occur in rumen of the cattle where they act upon cellulosic material to breakdown cellulose
$III.$ They play a very important role in the nutrition of cattle by digesting cellulosic material
Which of the statement given above are correct?
$I.$ sexual contact with infected person
$I.$ transfusion of contaminated blood
$III.$ sharing infected needless
$IV.$ from infected mother to her baby through placenta
Which of the statements given above are correct?
