Problem: Does "While the majority of flowers are perfect or hermaphrodite (having both pollen and ovule producing parts in the same flower structure), flowering plants have developed numerous morphological and physiological mechanisms to reduce or prevent self-fertilization." answer the question "Why are a heteromorphic flower's carpels and stamens different lengths?" OPTIONS:
- yes
- no

A: no

Problem: Does "was a number eleven hit in Britain, while the high speed rocker "Stone Cold Crazy" featuring May's uptempo riffs is a precursor to speed metal." answer the question "Killer Queen reached what number on the Billboard Hot 100?" OPTIONS:
- yes
- no

A: no

Problem: Does "Although Great Britain remained the dominant world power, British involvement in European affairs during the late 19th century was very limited, allowing Germany to exercise great influence over the European mainland.[citation needed]" answer the question "At the end of the Napoleonic wars, Germany had established itself as what, in continental Europe?" OPTIONS:
- yes
- no

A:
no