Answer:
Being provided with food is part of the essential care of a person. This is vital for existence. As God is our father, we (can) ask him to be always fed. This is why the request for our "daily bread" is included in the prayer.
Explanation:
The best example is when Jesus took a couple of pieces of bread, fish and wine and was able to feed the whole village, and then some. Taking care of everyone, as a father would.
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... :)