Question:
Choose your answer: Is "Males of species that engage in extra-pair copulations will closely guard their mates to ensure the parentage of the offspring that they raise." a good answer to the question "What do female birds have that allow sperm from males to remain viable long after copulation?"
Answer:
no

Question:
Choose your answer: Is "In 1871, after the end of the war, the city was annexed to the newly established German Empire as part of the Reichsland Elsass-Lothringen under the terms of the Treaty of Frankfurt." a good answer to the question "In what year was the city annexed to the German Empire?"
Answer:
yes

Question:
Choose your answer: Is "In the 1820s, Boston's population grew rapidly, and the city's ethnic composition changed dramatically with the first wave of European immigrants." a good answer to the question "How did Boston's population change in the 1820's?"
Answer:
yes