Tribulus and Medicago are dispersed by animals because they possess

Options

A. Sticky glands
B. Sweet pulpy fruits
C. Bright colour
D. Hooks

Answer

To answer the question, "Tribulus and Medicago are dispersed by animals because they possess," we need to analyze the options provided and understand the characteristics of these plants.

### Step-by-Step Solution:

1. **Identify the Plants**: Recognize that Tribulus and Medicago are two types of plants known for their seed dispersal mechanisms.

2. **Understand Seed Dispersal**: Seed dispersal can occur through various means, including wind, water, and animals. In this case, we are focusing on animal dispersal.

3. **Examine the Options**:
- **Sticky Glands**: These are typically found in plants that rely on insects for dispersal, as they help in adhering to the insects. However, this is not a characteristic of Tribulus and Medicago.
- **Sweet Pulpy Fruits**: These are attractive to animals and insects, encouraging them to consume the fruit and disperse the seeds. This is also not applicable to Tribulus and Medicago.
- **Bright Color**: Brightly colored fruits are also designed to attract animals and insects for seed dispersal, but again, this does not apply to these plants.
- **Hooks or Spines**: This is a key feature of Tribulus and Medicago. These plants have hooks or spines that attach to the fur of animals, allowing for effective seed dispersal.

4. **Select the Correct Answer**: Based on the analysis, the correct answer is that Tribulus and Medicago are dispersed by animals because they possess **hooks or spines**.

### Final Answer:
Tribulus and Medicago are dispersed by animals because they possess **hooks or spines**.

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