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zmey [24]
3 years ago
14

The structure labeled. “X” represents:

Biology
2 answers:
Ymorist [56]3 years ago
8 0
The answer is A ( Tetrad )
elena55 [62]3 years ago
6 0
The labeled area is B daughter cells
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Rizhobium bacteria live in symbiotic relationship with roots of leguminous plants such as pulses including alfalfa, soybean etc.

Rhizobium or Bradyrhizobium  is a gram negative bacteria that satisfies the nitrogen starvation of host plant.  

These bacteria get habitation and nutrition from these leguminous plants and in return they fix the nitrogen into the nodules of the roots. This is a kind of facultative association between soil bacteria rizhobium and legume plants.  

Hence, option A is correct

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