Plants which live for many years are called..............

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Plant Life Cycles**: Plants can be classified based on their life cycles, which include annuals, biennials, and perennials. Each category describes how long the plants live and how they reproduce.

2. **Defining Annuals**: Annual plants complete their life cycle in one year. They germinate, flower, and die within a single growing season. Examples include many common garden flowers.

3. **Defining Biennials**: Biennial plants take two years to complete their life cycle. In the first year, they typically grow leaves and roots, and in the second year, they flower and produce seeds before dying.

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