Lake food chain.

Algae-> Tadpole-> Carp-> Heron or Duckweed-> Water strider-> Frog-> Heron or Bacteria-> Algae-> Crustaceans-> Crucian-> Pike.



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.