Metamery Heteronomous

Heteronomous metamerism is a type of metamerism in which metamers retain the general structural plan, but differentiate in different directions and lose their external similarity. This type of metamerism occurs in many animals, including arthropods.

Heteronomous metamerism is characterized by the fact that each metamer has its own structure plan. However, each subsequent metamer differs from the previous one in one or more directions. This causes the metamers to lose their physical resemblance to each other, making them more similar to other types of metamers.

For example, in some arthropod species, metameres may have different sizes, shapes, number of limbs, or even their location. Each metamer may have its own sensory organs, movements and functions.

Despite the fact that heteronomous metamerism loses its external similarity, it retains the general structural plan and allows animals to adapt to different environmental conditions. Additionally, this type of metamerism allows animals to have a more flexible body structure and improves their ability to survive and reproduce.

Thus, heteronomous metamerism is an important mechanism for the adaptation of animals to various environmental conditions and ensures their survival and prosperity.