A 2006 study using high-speed electronic framing-streak cameras demonstrated that the action of these structures operates as quickly as 700 nanoseconds.
A 2006 study using high-speed electronic framing-streak cameras demonstrated that the action of these structures operates as quickly as 700 nanoseconds. The mechanism of such explosive action is still debated, but it may be driven by the 15 megapascal pressure provided by the charged gamma- glutamate matrix inside the capsule or a rapid intake of water when the operculum opens. Prey capture is typically accomplished by the desmoneme variety, while the stenotele variety which features an open-ended thread for delivering toxins. Along with spirocysts and ptychocysts they are a type of the namesake structure of their phylum, a structure which members of phylum Ctenophora, also known as comb jellies, lack. For ten points, identify this structure, a secretion of the cnidae and the mechanism by which jellyfish sting.
A 2006 study using high-speed electronic framing-streak cameras demonstrated that the action of these structures operates as quickly as 700 nanoseconds.
nematocyst (accept cnida before it is mentioned)