Identify the following analogy-based questions:
$(i)$ In Yeast and Hydra : Budding :: In Planaria : .....
$(ii)$ Method of naming : Nomenclature :: Organism associated with naming : .....

In which text is the classification of organisms mentioned?

Petroleum is derived from the words 'Petra' meaning rock and 'Oleum' meaning oil. The words 'Petra' and 'Oleum' are:

Which statement is correct regarding the study of the classification of organisms?

Which of the following statements is $NOT$ true for a species?

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.
The two correct statements are: