Evolution A) can happen whenever any of the conditions for Hardy-Weinberg equilibrium are not met B) requires the operation of n
atural selection C) must happen, due to organisms' innate desire to survive D) must happen whenever a population is not well adapted to its environment.
Hellbenders are fully aquatic, which means they cannot live out of water and do not try to crawl out of their stream or river habitat. As river water flows over their body, oxygen is taken up by tiny blood vessels in the skin and carbon dioxide is released
