Linnaean system of classification was based on

Options

A. morphology
B. ecology
C. embryology
D. cytology.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Linnaean System**: The Linnaean system of classification was developed by Carl Linnaeus, a Swedish botanist. It is one of the earliest formal systems for naming and classifying organisms.

2. **Basis of Classification**: The Linnaean system is primarily based on morphological characteristics. This means that organisms are classified based on their physical traits, such as structure, form, and appearance.

3. **Morphological Characters**: In this system, Linnaeus focused on specific morphological traits, including:
- The number of cotyledons (seed leaves) in plants.
- The number of petals in flowers.
- The number of stamens (the male reproductive part of a flower).

4. **Artificial System**: The Linnaean classification is considered an artificial system because it does not take into account genetic or evolutionary relationships. At the time Linnaeus was developing his system, there was limited knowledge about genetics, DNA, and RNA.

5. **Contrast with Modern Classification**: In contrast to the Linnaean system, modern classification methods often rely on genetic information and evolutionary relationships among organisms, making them more comprehensive and accurate.

**Final Answer**: The Linnaean system of classification was based on morphological characters of organisms, such as the number of cotyledons, petals, and stamens, and is considered an artificial system due to its reliance on physical traits rather than genetic relationships.

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