Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Question: What do bees do for flowering plants? Answer: pollinate
Thomas Quine (Flickr:quinet). Bees are important pollinators of flowering plants . CC BY 2.0.

Question: What is the strength of an earthquake called? Answer: magnitude
Earthquake: What Does Magnitude Mean? at http://www. livescience. com/20538-earthquake-magnitude-video. html (2:00).

Question: Who lack some of the defining traits of chordates? Answer: adult humans
Adult humans lack some of the defining traits of chordates. Why are humans still classified in the chordate phylum?.