(Question)
Q: Which organ secretes estrogen? Choices: - the testes - the thyroid - the kidney - the ovaries A:
(Answer)
the ovaries

(Question)
Q: What is the term for a technique used to separate out homogeneous mixtures in which one or more solids are dissolved in a liquid? Choices: - transpiration - absorption - distillation - evaporation A:
(Answer)
evaporation

(Question)
Q: What happens when antibodies are transferred to a person who has never been exposed to the pathogen? Choices: - acquired immunity - active disease - allergic reaction - passive immunity A:
(Answer)
passive immunity