Mark the following statements as True or False: Fleas which cause plague are wingless.

Answer

To determine whether the statement "Fleas which cause plague are wingless" is true or false, we can analyze the information provided.

1. **Understanding the Statement**: The statement claims that fleas responsible for causing plague are wingless.

2. **Identifying the Disease**: Plague is an infectious disease caused by the bacterium *Yersinia pestis*.

3. **Transmission of the Disease**: The transmission of plague occurs primarily through fleas that infest rodents. These fleas act as vectors, meaning they carry the bacteria from infected animals to humans.

4. **Characteristics of Fleas**: Fleas are small, wingless insects. They are known for their jumping ability rather than flying, which is a characteristic of their anatomy.

5. **Conclusion**: Since the fleas that transmit the plague are indeed wingless, the statement is true.

Final Answer: True