APAKAH MAKSUD STATOBLAST dalam CORSICA?
Statoblast
Statoblasts adalah cara untuk menghasilkan semula asexually dengan kaedah yang unik di kalangan bryozoans dan membolehkan garis keturunan koloni untuk bertahan dalam keadaan berubah-ubah dan tidak menentu persekitaran air tawar. Statoblasts adalah massa sel yang berfungsi sebagai "pod survival" dan bukannya seperti gemmules dari span. Bentuk statoblas pada funiculus yang disambungkan kepada usus ibu bapa, yang menyuburkan mereka. Apabila mereka tumbuh, statoblas mengembangkan pelindung bivalve seperti kalung yang terbuat dari kitin. Apabila mereka matang, beberapa jenis melekat pada jajahan ibu bapa, beberapa jatuh ke bahagian bawah, ada yang mengandungi ruang udara yang membolehkan mereka terapung, dan ada yang tinggal di cystid induk untuk membina semula koloni jika ia mati. Statoblas boleh kekal tidak aktif untuk jangka masa yang panjang, dan sementara tidak aktif dapat bertahan dengan keadaan yang teruk seperti beku dan desiccation. Mereka boleh diangkut di jarak jauh oleh haiwan, tumbuh-tumbuhan terapung, arus dan angin. Apabila keadaan bertambah baik, injap-injap kerang terpisah dan sel-sel di dalamnya menjadi zooid yang cuba membentuk koloni baru. Satu kajian menganggarkan bahawa satu kumpulan jajahan di patch 1 meter persegi menghasilkan 800,000 statoblas.
Definisi statoblast dalam kamus Corsica
Takrif statoblast dalam kamus adalah kuncup yang terkandung dihasilkan asexually oleh bryozoans tertentu yang boleh bertahan dalam keadaan buruk dan yang menimbulkan koloni baru.
CORSICA BUKU YANG BERKAIT DENGAN «STATOBLAST»
Ketahui penggunaan
statoblast dalam pilihan bibliografi berikut. Buku yang berkait dengan
statoblast dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
The Masterpiece of Nature: The Evolution and Genetics of ...
The barbarity of statoblast terminology is perhaps also unique. 'Floatoblasts'
possess an annulus of air-filled cells which provide enough buoyancy to ensure
adequate passive dispersal within a lake. 'Sessoblasts' are non- buoyant and ...
2
The illustrated natural history
456 THE STATOBLAST AND ITS DEVELOPMENT. same mind. But in the present
case, there is no common centre to which the aIIIs of the myriad polypes that
compose the group can be referred ; and the locomotive capacities of the
Cristatella ...
3
The Illustrated Natural History: Birds
456 THE STATOBLAST AND ITS DEVELOPMENT. same mind. But in the present
case, there is no common centre to which the wills of the myriad polypes that
compose the group can be referred ; and the locomotive capacities of the ...
(e) A statoblast was observed to be released through a passage that must be
very close to the white spot, because similar looking tissue (arrowhead) is seen
close to the statoblast. (f) Light micrographs of the lophophoral white spot at 400Â
...
Andrej Ernst, Priska Schäfer, Joachim Scholz,
2012
5
Tracking Environmental Change Using Lake Sediments: Volume ...
The buoyant floatoblasts could be flushed from lakes before they could be
deposited. Free statoblast valves from germinated colonies (or from being broken
apart) may have a greater probability of ending up in deep lake sediments were
cores ...
John P. Smol, William M. Last, H.J. Birks,
2001
6
Biology and Palaeobiology of Bryozoans: Proceedings of the ...
A, statistics on statoblast size (in mm); mean diameter values (and standard
deviation). B, frequency (and percentage) of statoblasts in different spinosity
categories. Spinosity categories represent pooling of data for frequency
distribution ...
Peter J. Hayward, John Stanley Ryland, Paul D. Taylor,
1994
7
Ecology and Classification of North American Freshwater ...
Ultrastructure of the statoblast suture and its possible relation to germination
have been studied[13,76]. The budgeting of energy resources for colony growth
and reproduction is poorly understood. In many cases, gametogenesis precedes
...
James H. Thorp, Alan P. Covich,
2010
8
Multicellular Animals: Order in Nature - System Made by Man
First zooid from statoblast with cleft between the arms of the lophophore. E-G
Plumatella fungosa. Sexual reproduction with brood care. E Emergence of a
young colony from the embryo sac. F Free swimming ciliated colony founder with
two ...
9
Australian Freshwater Life: The Invertebrates of Australian ...
Only one type of statoblast, viz. sessoblasts directly attached to zooecium or
substratum ... 4 -. Two types of statoblast, viz. sessoblasts and free statoblasts . . .
5 4. Statoblasts small, oval or bean-shaped, seldom round, capsule valves fragile
, ...
William David Williams,
1980
10
Bryozoa: Ordovician to Recent : Papers Presented at the 6th ...
A Pectinatella gelatinosa statoblast. A, central part of the dorsal valve. x 500. B,
marginal part of the annulus. X 1500. C, middle part of the annulus. Minute knob-
like projections are seen on the bottom of each compartment. x 1500. D, central ...
Claus Nielsen, Gilbert Powell Larwood,
1985
BARANGAN BERITA YANG TERMASUK TERMA «STATOBLAST»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
statoblast digunakan dalam konteks perkara berita berikut.
Moss monster dwells in the depths of the lake
While Bryozoans die when the weather turns colder, their statoblasts, or eggs, can survive the winter and start new colonies in warmer weather. It's possible the ... «Big Bear Grizzly, Okt 09»
Tuscarora Lake home to moss animals
Their offspring - fertilized eggs and asexual buds that form a protective coating called a statoblast - lie in the mud until warmer water reawakens them. «Citizens Voice, Sep 09»