Ubiquitous dendritic cells, found within mucosa and epidermis and having the function of processing foreign antigens and presenting relevant determinants to immunocompetent cells are known as:

Which of the following is NOT a class of standpipe system?

A) One B) Two C) Three D) Three A

What characteristic of plastic constitutes a life safety consideration and is therefore of fundamental interest to the fire inspector?

A. Toxic gases given off during combustion B. Physical changes initiated by extreme heat C. Structural strength and its use in the building D. Degradation of the materials exposed to the environment