Предмет: Биология, автор: mashysik

на основании правила экологической пирамиды (зерно-> мыши->сова) определите отношение котличества мышей к количеству сов.Биомасса зерна - 30000 кг, вес мыши - 200 г ,вес совы- 2 кг.

Ответы

Автор ответа: Неllбой
0

значит 3000 кг мышей, 300 кг сов, из этого следует,15000 мышей и 150 сов(100 к 1)

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Обществознание, автор: atrkf
помогите надо поскорее
6 лет назад
Предмет: Английский язык, автор: komiksdimas
Сократите пожалуйста для пересказа, 30 БАЛЛОВ


When Mr. Hiram B Otis, the american ambassador, bought Canterville Chase, every one told him it was a very foolish thing to do, as the place was haunted.

At eleven o'clock the family went to bed, and by half-past all the lights were out. Some time after, Mr Otis woke up because of a noise outside his room. It sounded like the chank of metal. He got up at once, struck a match and looked at the time. It was exactly one o'clock. Mr Otis was quite calm. The strange noise continued, and with it he heard the sound of footsteps. He put on his slippers took a small bottle out of his dressing case, and opened the door. Right in front him he saw an old man. He looked terrible . His eyes were red his hair was long and grey his clothes were old-fashion and dirty and there were handcuffs and rusty chains on his wrists and ankles. "my dear sir" said mr otis "those chains need oiling" . here take small bottle of lubricant. i will leave it here for you and i will give you more if you need it . With these words the ambassador put the bottle down on a marble table and went back to bed closing the door behind him.
6 лет назад
Предмет: Українська мова, автор: asdasdasd33
Нужна помощь в лексичних ошибках
6 лет назад
Предмет: Геометрия, автор: SummerLove
Один из углов равнобедренной трапеции равен 68 градусов. Нужно найти остальные углы.
10 лет назад
Предмет: Геометрия, автор: NastuchaNucha

основания трапеции относятся как 2:3 а высота равна 6 см площадь трапеции 60 см2. найдите основания трапеции
10 лет назад