Answer:
predator or a.pex predator
<span><span><span>Understanding the nature and appearance of our galaxy is no small feat, for we live within a disk of obscuring gas and dust.Astronomers do not think that a supermassive black hole at the center of a galaxy is unique to the Milky Way. Rather, it appears to be quite typical of the almost innumerable galaxies in the observable universe. The fact that black holes may be the rule rather than the exception makes it even more important that we continue to study them.</span> </span><span> <span> </span></span></span>
Answer:
If the pH of the water was too high or low, if the temperature was too hot or cold, or even the climate in which is provided to them inside of the tank can abiotically effect the population of the tank.
Explanation:
This is because of their natural abilities and capabilities. For reference: Many people like different temperatures whether they want to or not its a preference and if they were to change their location in which it has a new climate it would effect the way that they do things. Such as, a change in clothing.. But fish do not have clothes. Therefore it is unfortunate that some of their population does die naturally even in the wild do to this.