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Updated: May 14, 2025
As this goes on, a bundle of threads appears, at first closed like a bud, but gradually opening out into a crown of tentacles, each one clothed with hairs. Then you will see that the slit was not exactly a slit after all, but the round edge where the sac was pushed in. Ah! you will say, you are now showing me a polyp like those on the sertularian tree.
'An Irish mob has got in, and there's an end of everything. So up went the curtain, and the polyp appeared, becoming rapidly red coral as she perceived what the exhibition was, and why the politeness of the Green Isle revolted from her proclaiming her own unpopularity. But all she did was to turn gruffly aside, and say, 'It is lucky there are no more ladies to come, Mr.
They usually reproduce themselves by budding in very much the same way as do the Anemones, but the Coral Polyp does not separate from the parent when it gets its growth; it stays fastened to the mother, and soon imitates her example by producing a bud which becomes a coral flower.
Ursula was aware of the bright moon leaping and swaying, all distorted, in her eyes. It seemed to shoot out arms of fire like a cuttle-fish, like a luminous polyp, palpitating strongly before her. And his shadow on the border of the pond, was watching for a few moments, then he stooped and groped on the ground.
You will learn the difference between the animal which builds up the red coral as its skeleton, and the group of animals which build up the white; and you will look with new interest on our piece of white coral, as you read that each of those little sups on its stem with delicate divisions like the spokes of a wheel has been the home of a separate polyp, and that from the sea-water each little jelly animal has drunk in carbonate of lime as you drink in sugar dissolved in water, and then has used it grain by grain to build that delicate cup and add to the coral tree.
Such are the hydra, the polyp, the coral, and the sea-anemone. When we look to the common structure of these animals, to find the ancestral type, we must ignore the nerve and muscle-cells which they have developed in some degree. Fundamentally, their body consists of a pouch, with an open mouth, the sides of the pouch consisting of a double layer of cells.
If you wish to know how much the tentacle of a small polyp is worth you may chance to see a cent pass for it from the crone who buys to the boy who sells it smoking from the kettle; but the price of cooked cabbage or pumpkin must remain a mystery, along with that of many raw vegetables and the more revolting viscera of the less-recognizable animals.
Gentelmen," he wrote, "I receved the genral order 719 and will oba it but I will have to practise v. and n. awhile first, some of the words dont come natural to me off hand like polyp and estivate. what is the rate on these if any comes exprest. whats a etiology, pleas advice me am I to use all these words or only sum. Mike Flannery."
The most complex and differentiated tracts of even the highest animals have evolved from a simple sac like that of a polyp or jellyfish, as we know from the independent testimony of comparative anatomy and embryology; in this case also the evolution of alimentary functions is no less inseparable from the transformations in structural respects.
A gelatinous, semifluid substance coated the fibrous tissue of these sponges, and from this tissue there escaped a steady trickle of water that, after carrying sustenance to each cell, was being expelled by a contracting movement. This jellylike substance disappears when the polyp dies, emitting ammonia as it rots.
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