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A sociologist is interested in studying how fathers support breastfeeding mothers. She invites heterosexual couples with a nursing baby into her office to observe their interactions. What level of analysis is she conducting?
Antigens
Substances recognized by the immune system, potentially triggering an immune response.
Polysaccharides
Large molecules composed of many sugar units bonded together, functioning as energy stores or structural components in living organisms.
Specific Defense Mechanisms
Immune responses that are specifically tailored to recognize and target particular pathogens or antigens.
Antibodies
Proteins produced by the immune system that recognize and neutralize foreign substances such as bacteria and viruses.
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