The prey is immobilised by the nematocysts in the tentacles which inject toxins, then passed by the tentacles through the mouth and into the gastrovascular cavity.
Some can inject venom and toxins, and skunks and bombardier beetles spray noxious chemicals to deter attackers.
An individual will attack a potential victim by biting one of its legs and injecting toxins.
Women who balk at spending thousands of dollars a year to inject toxins into their faces may be prime fodder for Frownies, which are just pieces of paper coated with a vegetable-based adhesive that when moistened adhere to the face and mechanically coax the muscles back into shape.
The basal body that is now the rotary motor might have evolved from a structure used by the bacterium to inject toxins into other cells.
Spiders use their fangs to inject toxins that kill the insects they will eat.
It includes important disease vectors of animals and humans (tick-borne disease), and some species (notably Ixodes holocyclus) inject toxins that can cause paralysis.
For example, the bubonic plague bacterium Yersinia pestis has an organelle assembly very similar to a complex flagellum, except that is missing only a few flagellar mechanisms and functions, such as a needle to inject toxins into other cells.
It attacks another spider by biting one of its legs and injecting toxins.
A typical member of this class has a stylet, a calcareous barb, with which the animal stabs the prey many times to inject toxins and digestive secretions.