Which of the following components carries out oxygen cycle and also produces hydrogen per oxide ?

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#Question id: 1064

#XL - T Zoology

An infection in which the virus is continually present in the body is referred to as

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#Question id: 14994

#XL - S Microbiology

The absence of MHC class I, which is expressed by almost all normal cells, but is specifically down-regulated by some tumors and in response to some viral infections, it will undergo apoptosis by

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#Question id: 12577

#XL - R Botany

During  a  field  trip,  an  instructor  touched  a  moth  resting  on  a  tree  trunk.  The  moth  raised  its  forewings  to  reveal large eyespots on its hind wings. The instructor asked why the moth lifted its wings. One student answered that sensory  receptors  had  fired  and  triggered  a  neuronal  reflex  culminating  in  the  contraction  of  certain  muscles.  A second student responded that the behaviour might frighten predators. Which statement best describes these explanations?

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#Question id: 7703

#XL - S Microbiology

Carolus Linnaeus believed that species remained fixed in the form in which they had been created. Linnaeus would have been uncomfortable with ________.

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#Question id: 3909

#XL - Q Biochemistry

The template strand of DNA is copied by RNA polymerase from