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Hypothesis with regard to the feeding current in Bryozoa

Submitted by Mousumi Sepai, Last Modified on 2019-11-30

How do bryozoans feed? bryozoa facts. bryozoa life cycle. In Bryozoa the feeding mechanism takes some steps to from capturing the food particles to excretion. Hypothesis of feeding current is also a very important step of feeding mechanism. This process takes four steps to complete. Impingement feeding hypothesis, Ciliary reversal hypothesis, Rejection of unwanted particles, Ingestion. There is no evidence that mucus play any role in feeding. No secretary cells have been identified in the tentacles.

d3js example of d3 axis

Submitted by Asif Nowaj, Last Modified on 2019-11-20
d3js-axis example-diagram

Simple example of initiating chart by d3.js. In this example, you can see how to create X axis or Y axis using SVG. D3.j3 tutorial is getting started here. You can learn how to create chart axis using d3.js while it teaches the basic application of D3.js itself.

Feeding Apparatus of Bryozoa

Submitted by Mousumi Sepai, Last Modified on 2019-11-30

Feeding Apparatus of Bryozoa. Bryozoa(Polyzoa/ Ectoprocta/ moss animals) are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia. Bryozoan colonies are called zooids. Bryozoans have two types of feeding apparatus. Lophophore. Alimentary system.

Top best online writing platforms for publishing story for free

Submitted by Asif Nowaj, Last Modified on 2019-11-18

List of top online writing story sites, creative writing websites, where for free, you can write own stories like science fictions, Chic lit, Adventure stories, Fanfiction, Fantasy, Horror, Humour, Mystery, Paranormal, Teen fiction, thriller, werewolf and Romance. like Wattpad, vs Medium, vs Archiveofourown, vs Fanfiction, Webnovel, vs Tapas, vs Quotev, vs Dreame, vs Movellas, vs Inkitt .

Life cycle of Rotifera

Submitted by Mousumi Sepai, Last Modified on 2020-01-01

In rotifera there are amictic females which produce large, thin walled and developed eggs which are incapable of being fertilised and developed into females. Where as the mictic females lay small sized, haploid, thin walled mictic eggs, Which are capable of being fertilised specially during later phase of the year when sexual season approaches.

Vertebrate Brain

Submitted by Mousumi Sepai, Last Modified on 2019-11-19

Vertebrate Brain notes. In animal body the brain is an organ that is present in the head and works as the central-neural system in all vertebrate and invertebrate. Basic structure of a vertebrate brain. Telencephalon. Comparative account of telencephalon. Fish, Amphibian. Reptiles, Birds, Mammals. 5 major subdivisions of the adult brain-Telencephalon and diencephalon( Prosencephalon), Mesencephalon and Metencephalon(Mesencephalon), and Myelencephalon (Rhombencephalon). 3 primary brain vesicles, Prosencephalon, Mesencephalon, and Rhombencephalon.

Midgut of insect digestive system

Submitted by Mousumi Sepai, Last Modified on 2019-11-24

Midgut of insect digestive system. Insect In digestive system, food in the form of macromolecules and other substances(such as proteins, polysaccharides, fats and nucleic acids) breaks down by catabolic reactions. Sphincters control the food and fluid movement between three regions foregut, midgut and hindgut. In Midgut, digestive enzymes in this region are produced and secreted into the lumen and here nutrients are absorbed into the insect's body.

Retrogressive metamorphosis of Ascidia sp. - definition - classification - development stages

Submitted by Mousumi Sepai, Last Modified on 2019-11-18

Ascidians definition: Ascidians are sac-like marine invertebrate filter feeders which composed of a tough outer "tunic" made of the polysaccharide cellulose. Scientific classification and overview of Ascidiacea. Ascidians example, Tunicates, Metamorphosis of adult solitary Ascidian. Development of solitary ascidian tadpole larva. solitary tadpole larva's characters, Diagram of Solitary Ascidian tadpole Larva. Fixation and metamorphosis of tadpole larva.