Which line of defense is the body’s inborn, general defense mechanism?

a. adaptive immunity
b. the immune system
c. B and T cell activity
d. innate immunity
e. antibody production


ANSWER: d

Biology & Microbiology

You might also like to view...

When individuals of a species do not form close pair bonds, and both males and females mate with multiple partners,

the species’ mating system is described as promiscuous.

a. True b. False

Biology & Microbiology

What qualities would you expect to observe in this lake?

1.lots of nutrients 2.more phytoplankton than algae 3.high biomass in the profundal zone 4.lots of oxygen at all levels

Biology & Microbiology

How is summation related to IPSPs and EPSPs? What is the difference between temporal summation

and spatial summation? What will be an ideal response?

Biology & Microbiology

Which of the following areas of the respiratory tract is lined with a single layer of epithelial cells?

a. nasal cavity b. larynx c. trachea d. bronchi e. alveoli

Biology & Microbiology