Study the four statement (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.
The two correct statements are
Photoperiod affects reproduction in plants and decides LDP, SDP or day neutral plants. Binomial nomenclature system was proposed by Gaspard Baulin and established by Linnaeus.
These organisms also differ in size, color, habitat, physiology, and morphology.
Biologists have developed certain rules and principles supplementary which are helpful in the identification, nomenclature, and classification of organisms.