Question

Study the four statements, a-d, given below and select the two correct ones out of them.
(a) Definition of biological species was given by Ernst Mayr.
(b) Photoperiod does not affect reproduction in plants.
(c) Binomial nomenclature system was given by R.H. Whittaker.
(d) In unicellular organisms reproduction is synonymous with growth.

• A. a and b
• B. b and c
• C. c and d
• D. a and d

Answer 1

Answer: (D)

a and d

• Photoperiod affects the reproduction in plants by regulating the flowering timing of the plants.
  
• The binomial system of nomenclature was given by Carolus Linnaeus. R. H. Whittaker proposed 5 kingdom classification of living organisms.
  

So, the correct option is 'a and d'.