Answer:
The Food-chain.
Explanation:
For example, animals at the top of the food-chain, in their ecosystem, balance the population. The organisms at the bottom are the producers. Herbivores usually eat the producers which are multiple types of plants. Omnivores and herbivores are prey for the carnivores, but they are also predators to the herbivores. That's all I could really think of... :)
You would say it like this 欢迎回家 or like <span>Huānyíng huí jiā.</span>
I can help I'm taking japanese and I've already learned that. Do they already give you people that you need to introduce?
