Oligochaetes - feeding and digestion in annelids, Biology

Assignment Help:

Oligochaetes - Feeding and Digestion in Annelids

In between annelids, the oligochaetes which comprise mostly earthworms, feed on dead, decomposing organic vegetation. They as well digest organic matter contained in the soil which they swallow during burrowing. Aquatic forms feed on detritus, algae and microorganisms. Freshwater forms like Aeolosoma collect detritus along with its prostomium. The food is collected by making a partial vacuum when the ciliated ventral surface of prostomium is placed against the substratum and the center is elevated through muscular contraction. So, the partial vacuum created releases the food particles which are swept into mouth by cilia. Some oligochaetes such as Chaetogaster catch amoebae, ciliates, rotifers and trematode larvae via the sucking action of pharynx.


Related Discussions:- Oligochaetes - feeding and digestion in annelids

What are the symptoms associated with campylobacteriosis, What are the symp...

What are the symptoms and foods associated with campylobacteriosis?  Campylobacteriosis incubation period: 2-5 days after ingestion of contaminated food.  Symptoms: Diarrhoe

Procedure for quantitative determination of viable microbes, Explain for Pr...

Explain for Procedure Quantitative Determination of Viable Microbes? Now carry out the exercise following the steps included herewith: 1. Label the diluent tubes from 10 -1

Soil water-physical properties of soil, Soil Water Soil water relations...

Soil Water Soil water relationship is very important. In the fist place the supply of large quantities of water is necessary to satisfy the evapo-transpiration requirements of

Explain gastric bypass - surgical management for obesity, Explain Gastric B...

Explain Gastric Bypass - surgical management for obesity? Surgery is the current 'gold standard' for bariatric surgical procedures. It involves use of a stapling device to crea

The effect of light on the growth of stems, The effect of light on the grow...

The effect of light on the growth of stems (a)  Plant some seeds that grow rapidly like as oats, radish, bean or mustard seeds in two flower pots. When the seedlings are about

Define proteins required for underweight - nutritional care, Define Protein...

Define Proteins required for underweight - Nutritional Care? Proteins are required for tissue building, as well as, to take care of the daily wear and tear. Under weight indivi

Oxidative decarboxylation of pyruvate, Oxidative decarboxylation of pyruvat...

Oxidative decarboxylation of pyruvate Oxidative decarboxylation ofpyruvate : This is an important step in tissues with high oxidative capacity such as cardiac muscle, whereby

How is sound vibration captured by the tympanum, Q. How is the sound vibrat...

Q. How is the sound vibration captured by the tympanum transmitted through the ossicular chain of the middle ear? The acoustic transmission from the middle to the external ear

Pneumonia, P n e u mo n i a It is inflammation of pulmonary pare...

P n e u mo n i a It is inflammation of pulmonary parenchyma, usually accompanied by inflammation of bronchioles, and is characterized by cough, increased respiratory rat

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd