Given a scientific passage and an answer, generate a question for the given answer.

[Q]: Passage: Waves are characterized by their ability to constructively and destructively interfere . Light waves which interfere with themselves after interaction with a small aperture or target are said to diffract . Answer: diffract
[A]: Light waves which interfere with themselves after interaction with a small aperture or target are said to what?

[Q]: Passage: Cynodonts probably gave rise to mammals about 200 million years ago. However, they are not considered to be mammals themselves. In fact, competition with early mammals may have led to their extinction. They went extinct sometime during the Jurassic or Cretaceous Period. Answer: mammals
[A]: Competition with what emerging animal group may have led to extinction of cynodonts about 200 million years ago?

[Q]: Passage: Centipedes and millipedes belong to the subphylum Myriapoda, which contains 13,000 species. They all live on land, which makes sense as all those legs are more adapted to a terrestrial lifestyle, as opposed to an aquatic lifestyle. Answer: land
[A]:
Not surprisingly, centipedes, millipedes and other members of the subphylum myriapoda are adapted to living on what?