Answer:
overreacts to an antigen
Explanation:
Allergies to substances are as a result of immunological dysfunction.
<span>In the closed awareness context, patients do not know if they are going to die because the doctor and staff deliberately keep the information from them."</span>
it would be C because kingdom is animalia, phylum is chordata, class is mammalia and order is carnivora and humans and tigers are both carnivors
