Предмет: Биология, автор: kiramisu

1. Составь экологическую пирамиду: какое количество планктона в килограмммах необходимо, чтобы в водоеме выросла щука массой 8кг. Для этого составь пищевую цепь, состоящую из следующих объектов: щука, плотва, планктон.
2. Объясните переход энергии и веществ в экологической пирамиде

Ответы

Автор ответа: hotmexia777

Ответ:

Щука 8 кг = 10%

Плотва x кг = 100%

x= (100*8)/10= 80 кг - столько необходимо плотвы

Плотва 80 кг = 10%

Планктон x кг = 100%

x= (100*80)/10= 800 кг

Ответ: для щуки массой 8 кг необходимо 800 кг планктона

Объяснение:

Проверено 100%

Пж лучший ответ

mahilabaudinova: спасибо

isabekzhasmin1999: За плагиат лучший ответ?

isabekzhasmin1999: Ты цепь не сделал

diasorintaev: а как это понять пищевая цепь как её зделать?

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