Immunity provided by the transfer of antibodies is called

Options

A. Active immunity
B. Passive immunity
C. Non-specific immunity
D. Innate immunity

Answer

**Step-by-Step Solution:**

1. **Understanding the Types of Immunity**:
- Immunity can be categorized into two main types: innate (non-specific) immunity and acquired (specific) immunity. Innate immunity is present from birth and does not involve antibodies.

2. **Innate vs. Acquired Immunity**:
- Innate immunity includes physical barriers (like skin), physiological barriers (like stomach acid), and immune cells (like phagocytes). It acts against all pathogens indiscriminately.
- Acquired immunity develops over time and includes active and passive immunity.

3. **Active Immunity**:
- Active immunity occurs when the body produces its own antibodies in response to an antigen, such as through vaccination. This process requires the immune system to actively engage and generate a response.

4. **Passive Immunity**:
- Passive immunity, on the other hand, involves the transfer of antibodies from one individual to another. This can happen naturally, such as when a mother transfers antibodies to her fetus through the placenta (IgG antibodies), or artificially, such as when a person receives anti-venom derived from another animal (e.g., horse serum).

5. **Conclusion**:
- Since the question specifically asks about immunity provided by the transfer of antibodies, the correct answer is **passive immunity**.

**Final Answer**: The immunity provided by the transfer of antibodies is called **passive immunity**.

---