QUES: Q: What characteristic flowers show variation in?
A: Flowers show remarkable variation in form and elaboration, and provide the most trustworthy external characteristics for establishing relationships among angiosperm species.
Does the answer answer the question?

ANS: yes

QUES: Q: What economies led global economic growth prior to the financial crisis?
A: The International Monetary Fund found that "advanced" economies accounted for only 31% of global GDP while emerging and developing economies accounted for 69% of global GDP from 2007 to 2014.
Does the answer answer the question?

ANS: no

QUES: Q: During what time period do some scientist believe the first human could have contracted TB from an ancestor they shared with animals?
A: A comparison of the genes of M. tuberculosis complex (MTBC) in humans to MTBC in animals suggests humans did not acquire MTBC from animals during animal domestication, as was previously believed.
Does the answer answer the question?

ANS: no

QUES: Q: What type of bacteria can cause infectious diseases?
A: However, several species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy, and bubonic plague.
Does the answer answer the question?

ANS:
yes