A variation is a reference to the differences or deviations, such as the structure and form, as for crossing over is the exchange of genetic material between the non-sister chromatids of the homologous chromosomes during meiosis.
Answer:
The ecosystem will become more stable because the pika will no longer be. there to eat the grasses, the birds will migrate to other ecosystems during. nesting season, and the soils will be able to absorb more of the monsoon. D.
Explanation:
The decrease of predators would make the elk population thrive, because there would be nothing to hunt them down. And with an increase of food, the elks would have enough to eat therefore the elks would not die from hunger.
Pioneer species are hardy species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological successions that ultimately leads to a more biodiverse steady-state ecosystem.
