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

  • Option 1)

    B and C

  • Option 2)

    C and D

  • Option 3)

    A and D

  • Option 4)

    A and B

 

Answers (1)

 

Response to stimuli -

Living organism respond to their surrounding or environmental stimuli physically, chemically or biologically.

- wherein

Eg, Photoperiodism in plants, Turtle retract their head in the shells when frightened.

 

 

Five kingdom Classification -

Proposed by Whittaker (1969). The main criteria for classification include cell structure, body organisation, mode of nutrition, reproduction phylogenetic relationship.

- wherein

Five kingdoms includes :

  1. Monera
  2. Protista
  3. Fungi
  4. Plantae
  5. Animalia.

 

 

 

Photoperiod affects flowering in plants. 
Five kingdom system of classification was given by R.H Whittaker

 


Option 1)

B and C

incorrect option

Option 2)

C and D

incorrect option

Option 3)

A and D

correct option

Option 4)

A and B

incorrect option

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