Question

ПОМОГИТЕ НАЙТИ ВНУТРЕННЕЕ СТРОЕНИЕ ДВОЯКОЫШАЩИХ РЫБ. НЕ МОГУ НАЙТИ. ПОЖАЛУЙСТА!!!

Answer 1

У двоякодышащих есть жаберное и легочное дыхание.
Плавательный пузырь приобрел ячеистое строение и выполняет функцию легкого. Предсердие частично разделено на правую и левую половину.Скелет костно=хрящевой. Хорда сохраняется всю жизнь. Тела позвонков не развиваются

Answer 2

Internal Structure of Dipnoi Fish

Dipnoi is a subclass of fish that includes lungfish. The internal structure of dipnoi fish is characterized by several key features:

- Respiratory System: Dipnoi fish have a unique respiratory system that allows them to breathe both air and water. This is facilitated by the presence of lungs, which are used for aerial respiration, and gills, which are used for aquatic respiration.

- Skeleton: The skeleton of dipnoi fish is primarily cartilaginous, which is a defining characteristic of this subclass. This distinguishes them from other fish species with bony skeletons.

- Heart: The heart of dipnoi fish is also distinct, featuring a structure that allows for efficient circulation and oxygenation of blood.

- Digestive System: The digestive system of dipnoi fish is adapted to their omnivorous diet, allowing them to consume both plant matter and small aquatic animals.

- Reproductive Organs: Dipnoi fish have specialized reproductive organs that enable them to reproduce through internal fertilization. This is an important aspect of their reproductive biology.

In summary, the internal structure of dipnoi fish, including their respiratory system, skeleton, heart, digestive system, and reproductive organs, reflects their unique adaptation to both aquatic and aerial environments.