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#Question id: 5526


The allantois

#Unit 5. Developmental Biology
  1. Occurs in birds but not in mammals

  2. Is an outgrowth of the amnion in all animals producing it

  3. Contributes blood vessels to the umbilical cord in mammals

  4. Becomes the placenta in mammals


Answer:- Option(s): 3


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#Unit 12. Applied Biology

Aromatic hydrocarbons including benzene, toluene, ethylbenzene and xylene collectively referred as BTEX compounds. Which of them is considered as carcinogenic?

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#Unit 12. Applied Biology

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#Unit 12. Applied Biology

Why do bacteria oxidize BTEXs and other organic pollutants?

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