Предмет: Биология, автор: kostoevdeni

2. Расскажите о влиянии условий внешней среды на онтогенез растений.

Ответы

Автор ответа: tasha1654

9

Воздействие факторов среды на растения ведет к неоднозначным фенотипическим последствиям. Они зависят не столько от природы факторов, сколько от интенсивности их воздействия. Например, растения адаптированы к произрастанию в условиях естественного радиационного фона земли. При низких дополнительных дозах облучения у них отмечается стимуляция ростовых процессов. При возрастании дозы облучения появляются морфозы, т.е. ненаследуемые отклонения в развитии признаков, в дальнейшем появляются мутации, высокие дозы приводят к гибели растений

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