What are the features of the external structure of the hydra?
| November 26, 2020 | education
Hydra is a two-layer organism. The outer layer has stinging cells for protection.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
