Study the four statements (I-IV) given below and select the two correct ones out of them: 

1. Definition of biological species was given by Ernst Mayr. 
2. Photoperiod does not affect reproduction in plants. 
3. Binomial nomenclature system was given by RH Whittaker. 
4. In unicellular organisms, reproduction is synonymous with growth. 

The two correct statements are:

1.  II and I

2.  III and IV

3.  I and IV

4.  I and II

Subtopic:  Introduction & Growth as Criterion for Being Living (OLD NCERT) | Diversity in the Living World |
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