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Sessile

Definition

adjective

(1) Of, pertaining to, or relating to the state of sessility or the inability to move actively or spontaneously.

(2) Of, or pertaining to being permanently attached to the substrate or to the base, hence, not freely moving.

(3) (botany) Of, or pertaining to the lack of petiole or leafstalk in some plants.


Supplement

Word origin: Neo-Latin sessilis, sitting

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Yeast Mating Type Switching

... PART B: (b) A similar kind of cell asymmetry seems to occur during cell division in the bacterium, Caulobacter crescentus, in which a sessile (stalked) mother cell and a motile (flagellated) daughter cell are generated at the end of the cell cycle: diagram: http://i214.photobucket.com/albums/cc35/nirav464/partB.png ...

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by niravana21
Wed May 04, 2011 9:17 am
 
Forum: Cell Biology
Topic: Yeast Mating Type Switching
Replies: 3
Views: 6245

Re: Why Cnidaria swim?

There are many different forms of cnidaria, ranging from sessile corals to mobile jellyfish. The main reason for their mobile forms (including the medusa stage of anthozoans) is dispersal. Sometimes they swim towards the light for other reasons. There ...

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by skeptic
Wed Mar 24, 2010 8:41 pm
 
Forum: Zoology Discussion
Topic: Why Cnidaria swim?
Replies: 4
Views: 3300

How are plantae protists and stramenopila (diatom) different

... Most diatoms are unicellular and some are colonial algae, live in water, both heterotroph and autotroph, yellow brown chloroplast, they are sessile (don't have flagella however move by water stream as they float), reproduce by cell division. they are not considered to be plants because they ...

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by yahman
Fri Jan 22, 2010 5:26 pm
 
Forum: Microbiology
Topic: plantae protist and diatoms evolution
Replies: 3
Views: 12474

New Find in Antarctica

... few weeks back, but did you guys hear about the new find in Antarctica? Pink eelpouts were found, types of sea spiders and these glass tulip like sessile species. I do not remember the exact species names and great details, but it is on the web if you just search "Antarctica species finding" ...

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by Darwin420
Thu Mar 06, 2008 7:28 pm
 
Forum: Zoology Discussion
Topic: New Find in Antarctica
Replies: 6
Views: 3722

Medusa and polyp - question

I think my hint would be sessile vs mobile - just follow up your initial instincts.

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by Darby
Sun Mar 18, 2007 11:23 pm
 
Forum: Zoology Discussion
Topic: Medusa and polyp - question
Replies: 2
Views: 3753
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