Seeds bearing two cotyledons possess ______ root system.

Explanation

**Step-by-Step Solution:**

1. **Understand the Terms**: First, we need to understand what cotyledons are. Cotyledons are the first leaves that appear on a plant embryo. Seeds can have one or two cotyledons.

2. **Identify the Types of Seeds**: Seeds with one cotyledon are called monocots, while seeds with two cotyledons are called dicots.

3. **Know the Root Systems**: Different types of seeds have different root systems. Monocots typically develop a fibrous root system. In contrast, dicots develop a tap root system.

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