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Study the four statements (A-D) given be...

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

A

A and D

B

A and B

C

B and C

D

C and D

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate each of the four statements (A-D) to determine which two are correct. ### Step-by-Step Solution: 1. **Evaluate Statement A:** - Statement A claims that the definition of biological species was given by Ernst Mayr. - This statement is **correct**. Ernst Mayr is indeed known for his work on the biological species concept. 2. **Evaluate Statement B:** - Statement B states that photoperiod does not affect reproduction in plants. - This statement is **incorrect**. Photoperiodism is a phenomenon where the duration of light exposure affects flowering and reproduction in plants. 3. **Evaluate Statement C:** - Statement C claims that the binomial nomenclature system was given by R.H. Whittaker. - This statement is **incorrect**. The binomial nomenclature system was developed by Carl Linnaeus, not R.H. Whittaker. 4. **Evaluate Statement D:** - Statement D states that in unicellular organisms, reproduction is synonymous with growth. - This statement is **correct**. In unicellular organisms, the processes of growth and reproduction often occur simultaneously, making them synonymous. ### Conclusion: The two correct statements are: - Statement A: Definition of biological species was given by Ernst Mayr. - Statement D: In unicellular organisms, reproduction is synonymous with growth. ### Final Answer: The two correct statements are A and D. ---
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