In the human immune system, the first line of defense against any microorganisms or foreign material encountered is known as

A) Acquired immunity
B) Adaptive immunity
C) Specific immune response
D) Nonspecific immune response


Ans: D) Nonspecific immune response

Biology & Microbiology

You might also like to view...

The net gain of ATP per molecule of glucose fermented is

A) 1. B) 2. C) 4. D) 8.

Biology & Microbiology

A vast majority of scientists agree that disruption of the carbon cycle by human activities is altering the Earth’s climate and warming the planet

1.True 2.False

Biology & Microbiology

Most crop pests ________

A) have an opportunistic life history B) have an equilibrial life history C) exhibit type I survivorship D) consist of long-lived individuals

Biology & Microbiology

If all the possible three-letter codes were written using only the four DNA nucleotides for letters, there would be a total of _______ combinations possible. 

A. 4 B. 20 C. 64 D. 32

Biology & Microbiology