It is said that elemental composition of living organisms and that of inanimate objects (like earth's crust ) are similar in the sense that all the major elements are present in both. Then what would be the difference between these two groups ?
Choose a correct answer from the following.

Options

A. Living organisms have more gold in them than inanimate objects.
B. Living organisms have more water in their body than inanimate objects.
C. Living organisms have more carbon, oxygen and hydrogen per unit mass than inanimate objects.
D. Living organisms have more calcium in them than inanimate objects.

Explanation

To answer the question regarding the differences between the elemental composition of living organisms and inanimate objects, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Elemental Composition**:
- Both living organisms and inanimate objects contain major elements such as carbon, hydrogen, oxygen, nitrogen, calcium, and phosphorus. However, the proportions of these elements vary significantly between the two groups.

2. **Analyzing Water Content**:
- Living organisms have a higher water content compared to inanimate objects. For example, the human body is composed of approximately 60-70% water, while inanimate objects typically contain much less water.

3. **Comparing Carbon, Oxygen, and Hydrogen**:
- Living organisms have a higher concentration of carbon, oxygen, and hydrogen per unit mass compared to inanimate objects. This is crucial for biological processes such as metabolism and respiration.

4. **Calcium Content**:
- Inanimate objects, such as the earth's crust, generally contain more calcium than living organisms. For instance, the earth's crust has a significant amount of calcium, while living organisms have a much lower percentage.

5. **Conclusion**:
- Based on the analysis, the differences between living organisms and inanimate objects can be summarized:
- Living organisms have more water content.
- Living organisms have a higher concentration of carbon, oxygen, and hydrogen per unit mass.
- Inanimate objects contain more calcium.

### Correct Answers:
- **Option 2**: Living organisms have more water in their body than inanimate objects.
- **Option 3**: Living organisms have more carbon, oxygen, and hydrogen per unit mass than inanimate objects.