Предмет: Биология, автор: arinnna1301

Особенность, присущая только однопроходным животным:

1) наличие четырёхкамерного сердца; 2) отсутствие голосовых связок;

3) тело покрыто шерстью; 4) откладывание яиц.

Ответы

Автор ответа: gilinalu
2

Ответ:4) откладывание яиц.

Объяснение:

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