Define class turbellaria - flatworms, Biology

Assignment Help:

Define Class Turbellaria - Flatworms ?

Members of these two Classes are known as the flukes. Flukes are parasitic flatworms that inhabit tropical areas like Southeast Asia and North Africa. Flukes may live part of their lives in one or more hosts such as humans, livestock, or even snails, and part of their lives in the open, usually a water body.

The parasitic lifestyle is reflected in the types of structures that these animals have, as well as in the types of structures they lack. A parasite that lives in the digestive tract of another animal doesn't necessarily need eyes or other sensory organs to help it locate prey or avoid predators. If an animal lives in a nutrient-rich environment such as the gut of its host, it may not need a mouth and digestive tract of its own; on the other hand, it may require a protective cuticle to avoid being digested. Many parasitic species have special adaptations, such as hooks and suckers to help in anchoring themselves in the gut of the host. Since flukes parasitize several intermediate hosts, of which one is usually a free-living snail, flukes must produce tremendous numbers of offspring to reproduce successfully.

 


Related Discussions:- Define class turbellaria - flatworms

How is cancer usually treated, Q. How is cancer usually treated? If the...

Q. How is cancer usually treated? If the cancer is in its initial stage cure is often done by surgical removal of the neoplastic tissue. The Cancers already disseminated are of

What is the ecological role of earthworms, Q. What is the ecological role o...

Q. What is the ecological role of earthworms? Earthworms have an important ecological role as they eat decomposing organic material. They also dig tunnels in the subsoil allowi

Explain taxonomic hierarchy, Taxonomic Hierarchy The sheer complexity o...

Taxonomic Hierarchy The sheer complexity of organisms seems so bewildering that some people believe, life to be unfathomable by the rational mind. Biologists constantly chip aw

Explain about the commercial sterilization, Explain about the Commercial St...

Explain about the Commercial Sterilization? Sterilization is the most extreme heat treatment given in preservation of food by heat. Usually target organism is a heat resistant

DNA REPAIR, assignment for discussing DNA REPAIR

assignment for discussing DNA REPAIR

Different types of ecosystem, An ecosystem is a self sufficient interacting...

An ecosystem is a self sufficient interacting system in the biosphere. Eg. forest, desert, pond etc. almost, all the ecosystem have more or less similar fundamental plan for their

Explain consultant dietitians, Explain Consultant dietitians Consultant...

Explain Consultant dietitians Consultant dietitians work under contract with healthcare facilities  or  in  their own private practice. They perform nutrition screenings  for

What is enzyme proteins, Enzyme  Proteins   that act  as  catalysts, speed...

Enzyme  Proteins   that act  as  catalysts, speeding the rate  at  which biochemical reactions proceed but not altering the direction or nature of the reactions.

How the couple is a carrier for a genetic disease, On a separate piece of p...

On a separate piece of paper, draw a simple family tree for a couple showing children (F1), and lineages from two children showing grand children (G2), great grandchildren (G3), gr

Define the parts of specific immune or defense mechanisms, The specific imm...

The specific immune (defense mechanisms) response can be broadly classified into two types: a)  Cell mediated immune response: This  is achieved through large number of acti

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