Dictionary » N » Nematocysts

Nematocysts

Definition

(noun) Plural form of nematocyst.

See nematocyst for definition and additional information.


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Phyla Porifera and Cnidaria

... sure about that one. Not sure what part of the question needs explaining, it is simply asking how cnidarians capture and ingest/digest prey. The nematocysts (google this word, there is HEAPS of information about them) allow the animal to hold the prey and venom is injected. The venom is often ...

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by firechild
Tue Feb 02, 2010 2:09 am
 
Forum: Zoology Discussion
Topic: Phyla Porifera and Cnidaria
Replies: 3
Views: 13520

Re: Phyla Porifera and Cnidaria

... defense mechanism and secondary metabolites as chemical defense. By which means do Cnidarians seize and consumer faster organisms? Cnidarians use nematocysts (barbed, harpoon-like projections) to capture prey. Most species also produce venoms that are injected via the nematocysts to disable prey. ...

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by firechild
Tue Feb 02, 2010 1:23 am
 
Forum: Zoology Discussion
Topic: Phyla Porifera and Cnidaria
Replies: 3
Views: 13520

Why do you keep talking about species

... Hollow dorsal nervous chord, notochord, pharyngeal slits, endostyle, post-anal tail about 100,000+ Cnidaria Stinging nettle Coelenterates Nematocysts (stinging cells) about 11,000 Ctenophora Comb bearer Comb jellies Eight "comb rows" of fused cilia about 100 modern species Cycliophora ...

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by gamila
Mon Jun 29, 2009 5:35 pm
 
Forum: Evolution
Topic: Why do you keep talking about species
Replies: 23
Views: 50251

Can we extract a organelles from a cell to another?

... in nature all the time. I have studied nudibranchs that incorporate organelles from their prey into their own cells -- chloroplasts in some cases, nematocysts in others. These organelles retain their function in their new host, so it seems reasonable that other organelles might as well, at least ...

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by Wingnut
Tue Aug 05, 2008 4:36 am
 
Forum: Cell Biology
Topic: Can we extract a organelles from a cell to another?
Replies: 2
Views: 1678


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