Describe common signs of animals

Not all animals have common features. As a source of energy, they use prepared organic substances accumulated by other organisms. Animals feed on bacteria, fungi, plants, other animals, or their debris.
Animal growth usually stops after a certain period of development.
Many animals actively move: crawl, crouch, run, fly, swim. But there are sedentary animals that lead an attached lifestyle, such as coral polyps.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.