Paramecia (also known as nematodes) are a group of tiny, round animals that live mainly in lakes, rivers, soil and fresh water and are an important part of the ecosystem. Paramecia play a variety of important roles in nature and have the following functions:Important links in the food chain:Parame...
All living objects in nature are called organisms. Generally speaking, living things can be divided into three categories: plants, animals and microorganisms. Starfish - an echinoderm There are approximately more than 300,000 known species of plants, which can b...
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