The two main components of blood are ________ and _______ .

Explanation

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

1. **Understanding Blood Composition**: Blood is a vital fluid in the human body that performs essential functions such as transporting nutrients, oxygen, and waste products.

2. **Identifying the Main Components**: Blood is primarily composed of two main components: plasma and blood cells.

3. **Defining Plasma**: Plasma is the liquid portion of blood, which is a colorless fluid that contains water, salts, enzymes, and other substances.

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