An antibody, because antibodies are produced for a specific virus and are unique to that virus, that protein is the response to influenza.
Answer:
cell, tissues, organ,organ system and organism
I think the answer is D, since the heart is not under homeostasis
An organ or group of specialized cells in the body that produces and secretes a specific substance, such as a hormone
Answer:
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Explanation:
