Define Tricolpate

Explanation

**Step-by-Step Solution:**

1. **Understanding Pollen Grain Structure**:
- Pollen grains have an outer wall called the exine, which is composed of two layers: the outer layer (exine) and the inner layer (intine).
- The exine is characterized by having a discontinuous layer with areas called germ pores.

2. **Identifying Germ Pores**:
- Germ pores are specific areas on the pollen grain where the exine is absent, allowing for the emergence of the pollen tube during fertilization.
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