The surface defenses of the body consist of the ______ and the mucous membranes lining the digestive and respiratory tracts.  

A.  bone marrow
B.  skin
C.  T cells
D.  lymphocytes


B.  skin

Biology & Microbiology

You might also like to view...

Describe the significance and relationship of the genus and species taxons. If there were not humans

on earth to classify organisms, would species still exist? What will be an ideal response?

Biology & Microbiology

Where would you find smooth muscle tissue in your body?

A) in your heart B) in the walls of your stomach C) attached to bones D) None of the above is correct.

Biology & Microbiology

Hemostasis involves which blood component?

A. basophils B. platelets C. phagocytes D. monocytes E. neutrophils

Biology & Microbiology

What type of bonds are formed between adjacent amino acids

A. Glycosylic B. Ester C. Peptide D. Disulfide E. Phosphate

Biology & Microbiology