What are the features of the external structure of mammals?

The body consists of a head (mouth, nostrils, eyes, and outer ears), a neck, a torso with two pairs of limbs, and a tail. The body is covered with strong and elastic skin and contains the base of the hair. The toes end in horny nails or hooves.

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.