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The entire theory of zoology for the Unified State Exam: no fluff and only what will be in the exam questions! ???? If you want to pass the Unified State Exam with a hundred points, join us: https://stepenin.ru/go/iO5sHyah ⚡️???? Secret page for the Unified State Exam-2025 in biology: https://stepenin.ru/courses/bio-ege ???? Unified State Exam OPTIONS to solve on the website (many): https://stepenin.ru/tasks/bio-variants ???? VIDEO ANALYSIS of individual lines of tasks: https://stepenin.ru/tasks/bio-lines ???? Theory and practice to prepare for the Unified State Exam-2025: • Biology Unified State Exam-2025: all webinars and videos ???? Tasks for the Unified State Exam lines: • Tasks for the Unified State Exam lines ================================ Subscribe to our social networks: ???? VK biology: https://vk.com/bio4you ???? VK chemistry: https://vk.com/chem4you ✈️ Biological cart: https://t.me/bio4you ✈️ Chemical cart: https://t.me/chem4you_ege Our chemistry channel: / @stepenin ================================= 00:00:00 Hello! 00:08:57 Chordates. Cranials 00:18:00 Tunicates 00:21:45 Agnatha 00:22:55 Gnathostomata. Fish 00:27:47 Swim bladder 00:32:27 Cartilaginous and bony fish 00:41:05 Lobe-finned fish 00:42:50 Lungfish 00:47:54 Cartilaginous fish 00:49:30 Bony fish 00:51:36 Osmoregulation of fish 01:04:04 Evolution and diversity of vertebrates 01:24:12 Comparison of vertebrate classes 01:25:30 Integument 01:38:40 Skeleton 01:55:19 Circulatory system 01:59:05 Respiratory system 02:11:09 Digestive system 02:22:26 Nervous system 02:25:29 Sense organs 02:41:03 Excretory system 02:44:28 Reproduction. Embryonic membranes 02:55:51 Comparison of vertebrate classes. Results 02:59:46 Invertebrate zoology 03:06:07 Protozoa 03:32:22 Transition to multicellularity 03:33:38 Coelenterates 04:07:54 Flatworms 04:30:20 Roundworms 04:41:28 Annelids 05:10:36 Mollusks 05:33:11 Arthropods #biologyegex #egex2025