The adaptive immune response is the second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
<h3>What is second line of defense?</h3>
Nonspecific resistance, which destroys invaders without targeting specific individuals, is the second line of defense: phagocytic cells ingest and destroy all microbes that enter body tissues.
The adaptive immune response is the body's second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
Thus, adaptive immune system is a natural, nonspecific immune response, but it is part of the body's second line of defense.
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<span>increased crop yields Because i looked it up lol
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I think the answer your looking 4 is B
HOPE THIS HELPS
#Optimist
Everything has mass. The mass of something never changes.
Mass is measured using grams.
Air is not that heavy, but it certainly has mass because it takes up space.
For every one liter of air, their is 1.19 grams.
