FEEDING SYSTEM AND MECHANISM OF NEMATODE

Submitted by Mousumi Sepai, Last Modified on 2019-11-08

All nematodes possess a similar digestive system or tract that consists of a mouth, sometimes reffered to as a stoma, the pharynx or oesophagus, and the intestine. While present in all nematodes, there is some room for variation of these structures besed on the feeding habits of the different species. The most important types of nematode feeding or trophic groups include:

Algivores:- Nematodes found in aquatic environments and rarely in soil that feed primarily on algae.

Cyclomorphosis

Submitted by Mousumi Sepai, Last Modified on 2019-11-08

Cyclomorphosis is seasonal polyphenism or the occurrence of seasonal changes in the phenotype of small aquatic invertebrate organisms that reproduce by parthenogenesis and can give rise to several generations annually, for example as rotifers and cladoceran crustaceans. The species of Daphnia for example, undergo the changes of the head's shape during the year, from midsummer to spring it has a round shape, and then it changes to a helmet-shaped, and again it reverting to the rounded shape at midsummer.

MASTAX

Submitted by Mousumi Sepai, Last Modified on 2019-11-08

Mastax is a peculiar structure characteristic to rotifers. Mastax is actually the muscular pharynx part of the body which is containing the inter-connected movable chitinous pieces which are acting as jaws. It has created lot of interest among different workers, all over the globe. Some researchers suggest it to be a digestive component while others used it for the classification of rotifers.

Coral reef

Submitted by Mousumi Sepai, Last Modified on 2019-11-08

Coral reefs are tropical,under water, swallow water, calcareous structures supporting a diverse association of marine plants and animals. A reef mainly consist of reef building cnidarians for example, colonies of coral polyps and of calcareous red algae held together by calcium carbonate.Most of the time coral reefs are formed by stony corals, bunch of polyps groups.

jsTree with Custom Context Menu

Submitted by Asif Nowaj, Last Modified on 2019-11-20
jsTree Custom Context menu

If you haven’t read the introductory post on jsTree, I would recommend reading the Example of simple jsTree with static JSON data Example of simple jsTree with static JSON data.

There is a very little change to make the jsTree work with custom context menu feature. jsTree has multiple plugins to enable different features. In this case, we will use “contextmenu” plugin to enable this feature.

jsTree with Context Menu / right click menu

Submitted by Asif Nowaj, Last Modified on 2019-11-08
jsTree with default Context Menu, right click menu

If you haven’t read the introductory post on jsTree, I would recommend reading the Example of simple jsTree with static JSON data.

There is a very little change to make the jsTree work with context menu feature. jsTree has multiple plugins to enable different features. In this case, we will use “contextmenu” plugin to enable this feature.

Once context menu is added as a plugin, you will get the below default menu.

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