Study the following statements and choose the correct option.
I. Life spans of organisms are correlated with sizes.
II Death of all individuals is certain
III. The organism's habital, internal physiology etc.
are collectively responsible for how it reproduces.
IV. When offspring is produced by single parent with or called asexual reproduction.

Options

A. I, II are correct
B. III, IV are correct
C. I, III are correct
D. II, IV are correct

Answer

To solve the question, we need to analyze each of the statements provided and determine their correctness. Let's go through them step by step.

### Step 1: Analyze Statement I
**Statement I:** Life spans of organisms are correlated with sizes.

- **Analysis:** This statement is incorrect. Lifespan does not necessarily correlate with the size of an organism. For example, smaller organisms like mice have shorter lifespans compared to larger animals like elephants. Thus, size does not determine lifespan.

### Step 2: Analyze Statement II
**Statement II:** Death of all individuals is certain.

- **Analysis:** This statement is also incorrect. While all organisms do eventually die, the timing and circumstances of death can vary widely due to numerous factors, including environmental conditions, health, and accidents. Therefore, death is not certain in terms of timing.

### Step 3: Analyze Statement III
**Statement III:** The organism's habitat, internal physiology, etc. are collectively responsible for how it reproduces.

- **Analysis:** This statement is correct. The mode of reproduction in organisms can depend on various factors, including their habitat and internal physiological mechanisms. For example, certain organisms may reproduce asexually in favorable conditions and switch to sexual reproduction in adverse conditions.

### Step 4: Analyze Statement IV
**Statement IV:** When offspring is produced by a single parent, it is called asexual reproduction.

- **Analysis:** This statement is correct. Asexual reproduction involves a single parent producing offspring without the fusion of gametes. Examples include budding, fragmentation, and spore formation.

### Conclusion
Based on the analysis:
- **Statements I and II are incorrect.**
- **Statements III and IV are correct.**

### Final Answer
The correct option is: **3 and 4 are correct.**

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