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Answer:
This is considered as the study of homology.
Explanation:
Homology, studies the comparable characteristics of the physiology, structure or development of various species based on their decent from a similar evolutionary ancestor.
Foreign invaders have proteins called antigen, which antibodies lock onto to neutralize. The foreign proteins are different from proteins in our own body, so the immune system can recognize them and finally eliminate them.
Answer:
Sarcomeres are functional units of skeletal muscle fiber.
Explanation:
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