ответ:Строение сердца / Класс / Особенности строения:
1. Класс - рыбы / Особенности строения - 2-x камерное (предсердие, желудочек).
2. Класс - земноводные (лягушки, жабы) / Особенности строения - 3-х камерное (2 предсердие и желудочек).
3. Класс - пресмыкающиеся (ящерица, черепаха) / Особенности строения - 3-x камерное (2 предсердия и желудочек) с перегородкой, которая отделяет венозную и артериальную кровь в желудок.
4. Класс - млекопитающие / Особенности строения - 4-x камерное (2 предсердия и 2 желудочка).
ответ:Строение сердца / Класс / Особенности строения:
1. Класс - рыбы / Особенности строения - 2-x камерное (предсердие, желудочек).
2. Класс - земноводные (лягушки, жабы) / Особенности строения - 3-х камерное (2 предсердие и желудочек).
3. Класс - пресмыкающиеся (ящерица, черепаха) / Особенности строения - 3-x камерное (2 предсердия и желудочек) с перегородкой, которая отделяет венозную и артериальную кровь в желудок.
4. Класс - млекопитающие / Особенности строения - 4-x камерное (2 предсердия и 2 желудочка).
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