Asbestos
yes, aconite is poisonous to humans, and animals; also known as monkshood or wolfsbane.
Yes, mountain dew is a very poisonous substance which, despite the FDA warnings, is still sold. It is also been known to cause cancer in lab rats and in multiple cases, in humans as well. Under any circumstances, do NOT consume it!
Steroids is this substance
This is known as an enzyme.
Pesticides are, by their nature, poisonous. Many of them have been used at one time or another to try to kill people. The most widely known material used as both a pesticide and as a tool for murder, especially in literature, is arsenic.
lead is the compound that is soft and heavy also poisonous
yes wooly mamoths are reptiles. they were around in the jurrasic period. wooly mamoths are dinosaurs, they also go by the name of woolysaurus rex.
Yellow rattle is poisonous to horses. It is poisonous to other livestock as well. Yellow rattle is also known by the names cockscomb, and rattle-basket.
black substance
substantia nigra
An Enzyme
Fat