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.

Q. 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.

Q. Consider the following statements with respect to reproduction in the lower living organisms
(a) Organisms like yeast and Planaria reproduce asexually by means of budding
(b) True regeneration is observed in Hydra
(c) Protonema of mosses multiply by fragmentation
(d) In unicellular organisms like bacteria, algae, and Amoeba, reproduction is synonymous with growth, i.e., an increase in the number of cells.

Q. In unicellular organisms, with respect to growth and reproduction the following can be true.
1. Growth and reproduction are inclusive events.
2. Unicellular organisms grow by cell division.
3. Growth and reproduction are exclusive events.

Q. Regarding the assertion and reason, choose the correct option:
Assertion [A]: In the case of unicellular organisms, reproduction is synonymous to growth.
Reason [R]: Growth in unicellular organisms refers to an increase in the number of cells.

Q. Binomial system of nomenclature was given by