Name two plant parts where nickel is present.

Explanation

### Step-by-Step Solution:

1. **Understanding Nickel in Plants**: Nickel is classified as a micronutrient, which means that plants require it in smaller amounts compared to macronutrients.

2. **Categories of Nutrients**: Nutrients in plants are divided into two main categories: macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities).

3. **Identifying Micronutrients**: Nickel is one of the micronutrients, along with others like zinc, boron, and manganese.

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