This immunity provides protection against all types of pathogens and has no "memory."

Options

A. Specific
B. Humoral immunity
C. Cell mediated immunity
D. Non-specific

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about a type of immunity that provides protection against all types of pathogens and does not have "memory."

2. **Identifying the Types of Immunity**: There are two main categories of immunity: specific (adaptive) immunity and non-specific (innate) immunity. Specific immunity includes humoral and cell-mediated immunity, which have memory and target specific pathogens. Non-specific immunity, on the other hand, acts against all pathogens without targeting any specific one.

3. **Analyzing the Options**:
- **Specific Immunity**: This type of immunity is tailored to specific pathogens and includes memory cells. Therefore, it does not fit the description in the question.
- **Humoral Immunity**: This is a type of specific immunity that involves antibodies and also has memory. Thus, it is not the correct answer.
- **Cell-Mediated Immunity**: This involves T-cells and also has memory, making it specific to certain pathogens. Hence, it is not the answer.
- **Non-Specific Immunity**: This type of immunity provides a general defense against all pathogens and does not have memory. It includes physical barriers (like skin), physiological barriers (like tears and saliva), and cellular barriers (like macrophages).

4. **Conclusion**: The correct answer is **Non-Specific Immunity**, as it matches the criteria of providing protection against all types of pathogens without having memory.

### Final Answer:
The immunity that provides protection against all types of pathogens and has no "memory" is **Non-Specific Immunity**.

---