Larger eukaryotes, such as mammals, have motile cilia as well. Motile cilia are usually present on a cell's surface in large numbers and beat in coordinated waves. In humans, for example, motile cilia are found in the lining of the trachea (windpipe), where they sweep mucus and dirt out of the lungs. In female mammals, the beating of cilia in the Fallopian tubes moves the ovum from the ovary to the uterus.
Also, ask them about their basic qualifications. For example, while the basic qualifications to become a police officer in California is to be 18 years of age, other departments require a higher age limit, like 20 years of age at the time of your examinations.
While its true that there are minimum requirements to becoming a correctional officer, but rarely if even do you see any mention to a persons age as a disqualifier from being hired. Quite the opposite, you will normally see a minimum age requirement anywhere from age 18-21 years of age.