Identify the scientists who worked extensively on chlorophyllous and nonchlorophyllous thallophyes respectively
(a)Iyengar
(b)Swaminathan
(c ) Mehta
(d) Maheshwari

Options

A. a,d
B. b, c
C. c, d
D. a, c

Answer

To identify the scientists who worked extensively on chlorophyllous and non-chlorophyllous thallophytes, we can follow these steps:

### Step 1: Understand the Terms
- **Chlorophyllous Thallophytes**: These are autotrophic organisms that contain chlorophyll and can perform photosynthesis.
- **Non-Chlorophyllous Thallophytes**: These are heterotrophic organisms that do not contain chlorophyll and cannot perform photosynthesis.

### Step 2: Identify the Scientists
- The question provides four scientists: Iyengar, Swaminathan, Mehta, and Maheshwari.
- We need to match these scientists to their respective fields of study concerning chlorophyllous and non-chlorophyllous thallophytes.

### Step 3: Recall Relevant Information
- **Iyengar** is known for his work on chlorophyllous thallophytes (autotrophic).
- **Mehta** is recognized for his research on non-chlorophyllous thallophytes (heterotrophic).

### Step 4: Match the Scientists to the Options
- The correct pairing based on the information is:
- Chlorophyllous Thallophytes: Iyengar
- Non-Chlorophyllous Thallophytes: Mehta

### Step 5: Choose the Correct Option
- Based on the above information, the correct answer is (A) Iyengar for chlorophyllous and (C) Mehta for non-chlorophyllous.
- Therefore, the answer is A and C.

### Final Answer
The scientists who worked extensively on chlorophyllous and non-chlorophyllous thallophytes respectively are:
- (A) Iyengar and (C) Mehta.

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