I believe mutation will make a population have more genetic variation. Genetic variation describes naturally occurring genetic differences among individuals of the same species. It is the difference in DNA sequences between individuals within a population. Variation permits flexibility and survival of a population in the face of changing environmental circumstances. It is considered an advantage, as it is a form of preparation for the unexpected.
A climax community I think
If homeostasis fails, the organism could become dysfunctional, develop illnesses due to vulnerability to various microbes and/or die, simply. Homeostasis is the act where the organism strives to balance out its internal disposition. This mechanism helps the organism survive through various environmental changes.
<span>Protostomes represent animals whose embryonic cells cleave in a spiral an the mouth opening develops before the anus. These animals do not always have a body cavity. Sponges, mollusks and arthropods are protostomes. Echnioderms, vertebrates and chordates are not protostomes, they are deuterostomes. Deuterostomes develop the anus before the mouth, cleave radial and have a true body cavity.</span>
