There are different kinds of plants and animals on the earth and they get their food in different ways. Food chains are just used to show who eats what in a very simple way.
Food Chains
Here are some examples of food chains.
·A garden food chain might look like this:
·Humans can also be part of a food chain. A farm food chain could look like this:
A food chain shows how plants and animals are connected with each other based on the foods they eat. Food chains are different depending on the habitat. A habitat is the scientific name for a place where animals and plants live. Habitats can be very different from each other, so a garden food chain would be very different from a farm food chain.
Food chains usually start with a green plant, such as grass or a tree. This is because plants can directly change sunlight into energy that they can use for themselves. These plants are called "producers", and they create or produce their own food. They use this food to grow leaves, flowers, fruit and seeds (种子).
Food Chain Disruptions (中断)
When a food chain is broken, it may result in a bad situation. An example is over fishing. Over the years, humans have been catching too many fish at a quick speed leaving not enough to keep a healthy population. Because of this, other animals such as the turtles are endangered (濒危). So, humans should make sure our activities don't harm the ecosystem (生态系统).
