The livers have a good day! :))
Answer:
Option D, Gastric Juices
Explanation:
The second line of defense is a non specific defense mechanism in which no specific individual is targeted but all invaders are killed in general way. Some common mode of second line of defense are - Phagocytic cells (white blood cells), inflammatory responses, macrophage system etc. The second line of defense comes into action when the invader has surpassed the first line of defense which include either physical barrier like skin, mucous membrane, hair, cilia etc. or chemical barriers like gastric juices, saliva, Hyaluronic acid etc.
Hence, gastric juice does not belong to second line of defense.
Thus, option D is correct.
The answer is the first one because it doesn't create gases and, the third one doesn't even make any sense so its definitely not that one
Answer:
B. Asexual reproduction involves one parent, and sexual reproduction involves two.
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</span>https://www.google.com/search?q=He+sequence+of+________________+in+a+DNA+molecule+determines+the+pro...