Оценка:
Опубликованно: 18.10.2003.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'New Type of Poisonous Dart Frog', 1.
Фрагмент работы

Scientist have actually found a poisonous frog that takes a toxin from its prey and then changes the chemical to make it much more deadly. There are at least three species of what are called the Dendrobates frogs. They range from 4-to-5-centimeters long and they can be found in the New World tropics. The frogs modify an alkaloid to create one that's about five times as poisonous. The poison, one of a class called pumiliotoxins, ends up as a protective agent in the frogs' skin.
It's an important thing, showing how chemistry connects the life of one organism to another. …

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