1) a change in the color of the chameleon’s body (in a stressful situation, the animal can turn bright red or yellow and thereby give itself out to the enemy);
2) tortoise shell (a reliable means of protection of the animal turns out to be useless if the turtle falls into the paws of an eagle – it lifts the victim high into the sky, and then releases it so that the shell breaks when falling to the ground);
3) the ability of cacti to accumulate moisture in the stem (with the onset of prolonged downpours, the plant may die from an excess of moisture);
4) mimicry of the wasp fly (can be eaten by a young bird that has not yet developed a reflex).
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.