Which type of thermometer has a constriction (narrowed passage) in the bore of the glass tube?

A clinical thermometer has a constriction whereas a laboratory thermometer does not. This is because a clinical thermometer needs to hold the temperature of the patient it was recently removed from long enough for the medical provider to read and record it. A laboratory thermometer however needs to change immediately with the temperature around it so that clinical tests can be recorded more accurately.

1.fossils 2.analogous organs 3.homologous organs

True to the fact it is actually false