Explain in details class hirudenia - leeches, Biology

Assignment Help:

Explain in details Class Hirudenia - Leeches?

This group includes the leeches. Most leeches grow in tropical freshwater habitats, and are familiar to most people as bloodsuckers. The most distinguishing feature of leeches are the sucking organs that attach the leech to its host. Leeches have two suckers-one sucker at either end of the worm. Once a sucker penetrates the skin, it secretes an anti-coagulant saliva that prevents the blood from clotting. Some species even inject an anesthetic into the bite wound so that the host doesn't feel the parasite! The leech then gorges itself with blood and can increase its mass up to 10 times its normal weight. Leeches are widely used in some post-surgical procedures to help reduce swelling around the wound. These leeches are, of course, sterile and bred specifically for this task.

 


Related Discussions:- Explain in details class hirudenia - leeches

Digestion of carbohydrates, Digestion of Carbohydrates Digestion of foo...

Digestion of Carbohydrates Digestion of food starts in the mouth  itself by the action  of  enzyme  salivary  amylase  and  the  carbohydrates present  in  the food, particular

State about the neuropsychological assessment, State about the Neuropsychol...

State about the Neuropsychological assessment Neuropsychological assessment provides information concerning the status of brain function across the life span. It does so primar

Explain structural and functional relationship, Describe the location and s...

Describe the location and structure of the pituitary gland and explain its structural and functional relationships with the hypothalamus.

Describe the theory of capillarity of water, a) Describe the theory of capi...

a) Describe the theory of capillarity of water translocation in plants. b) Can the theory define translocation of water in 100 m tall trees? Give one reason.

Define management & prognosis of root perforation, Define Factors Affect Ma...

Define Factors Affect Management and Prognosis of Root Perforation Time Location of defect in relation of crestal bone Level of perforation Size Periodo

What is peristomium. describe, What is peristomium. Describe? The segme...

What is peristomium. Describe? The segment behind the prostomium in annelids which contains the oral opening. This segment like the prostomium isn't a true segment and has no s

What is genesis of coronary artery diseases, What is genesis of coronary ar...

What is genesis of coronary artery diseases ? Like any other disease conditions, origin of CAD depends on an interplay between the heredity and environment so called 'nature' a

Artificial parthenogenesis, Artificial Parthenogenesis In various cas...

Artificial Parthenogenesis In various cases, the eggs that normally develop only after fertilisation can be experimentally induced to develop parthenogenetically by specific

The difference between plasmalogen and glycerophospholipids, What is the st...

What is the structural difference between plasmalogen and other glycerophospholipids? What physiological advantage arises from this structural difference?

Floating plants, what are floating plants? detailed information

what are floating plants? detailed information

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