There are too many to list, and the list varies a bit between varieties. But there are a number of tannins in the seeds (and the leaves and bark) of the avocado. These chemicals can be innocuous or they can be mildly to moderately toxic depending on which "flavor" you choose.
The persin contained in some parts of an avocado is toxic to birds and large animals. It is not toxic, however, to dogs, although some people claim it is.
Warning: they can be poisoned by the avocado contained in guacamole.http://www.dogchannel.com/dog-news/2006_11/2006_11-08news002.aspx
avocado is not popular in India. It is called avocado Only.
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How do avocado's reproduce
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AVOCADO
The Haas Avocado..........
An avocado is a fruit