The answer is very simple: Animals have adapted to survive the small doses or poison, or they simply don't eat the parts that contain it. For example, both apple seeds and peach pits contain cyanide, which can be used to produce rat poison, but we don't eat this part of the fruit. Another example is the cashew (Nuez de la India): Toxic oils are removed from cashews before they are eaten. The poisonous oils that were removed from the plant can then be used to make brake fluid (This fluid is key in the process of hydraulic braking and hydraulic clutching in vehicles). (Johnson)
Some poisonous plants have very beautiful but deadly flowers, which can be used as decoration. The poison produced by these flowers can be used to eradicate pests. As I mentioned in other blogs, the poison produced by plants can also be used to get food. Another use of poison is healing, but not like animal venom: In the plants' case, it's poison is used to cure common illnesses. For example: A plant that causes constipation can be used to cure diarrhea, and a poison that irritates the stomach diluted out might kill what is causing an upset stomach. (Johnson)
That's all for this entry, have a great weekend! :)
Bibliography
Johnson, James. "Uses of poisonous
plants." 05 May 2009. Helium. 21 October 2011
<http://www.helium.com/items/1439771-poisonous-plants-and-their-uses-the-value-of-plant-poisons>.
Poisonous plants are very dangerous, that´s why I am not a plant fan because they could provoke me a rash and also in the green area, where plants grow up there tends to be so many insects, and I seriously hate insects, they are so stubborn, I don´t tolerate them, so I don´t like plants.
ReplyDeleteI agree with you about the level of poisonous a plant can be, because the poison it usually is the thing they use to defend themselves of the predators so we need to be very careful with the plants with touch.
Felipe great job! :)