Number of species belonging to gymnosperms is

Options

A. 900
B. 1000
C. 700
D. 800

Answer

To determine the number of species belonging to gymnosperms, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gymnosperms**:
- Gymnosperms are a group of seed-producing plants that include conifers, cycads, Ginkgo, and gnetophytes. They are characterized by having "naked seeds," meaning their seeds are not enclosed in an ovary (fruit).

2. **Identifying Key Characteristics**:
- The term "gymnosperm" comes from the Greek words "gymnos" (naked) and "sperma" (seed). This indicates that gymnosperms do not produce flowers or fruits.

3. **Estimating the Number of Species**:
- According to various botanical sources, the total number of living gymnosperm species worldwide is approximately 900.

4. **Classification of Gymnosperms**:
- These 900 species are classified into about 79 genera and 15 families. This classification helps in understanding the diversity within gymnosperms.

5. **Comparison with Angiosperms**:
- Gymnosperms account for only about 0.36% of the total number of angiosperm species, which are the flowering plants. This highlights the relatively smaller number of gymnosperm species compared to angiosperms.

6. **Conclusion**:
- Based on the information gathered, the number of species belonging to gymnosperms is approximately 900. Therefore, the correct answer to the question is option 1: 900.

### Final Answer:
The number of species belonging to gymnosperms is approximately **900**.

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