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

Explain in brief about the ciliary muscle, Explain in brief about the cilia...

Explain in brief about the ciliary muscle During accommodation the ciliary muscle contracts and in turn the size of the ciliary ring is reduced. This results in the suspensory

Explain procedure for test the presence of sugar in honey, Procedure for Te...

Procedure for Test the Presence of Sugar in Honey? 1. Mix 5 grams of honey with 5 ml ether in a mortar and pestle. 2. Decant off the ether extract into an evaporating dish.

Can you explain bayesian theorem, Q. Can you explain Bayesian Theorem? ...

Q. Can you explain Bayesian Theorem? Bayesian Theorem: The predictive value of a test is related to the incidence of disease in the population. A history of typical angin

What is the optimum temperature for catalyses, What is the optimum temperat...

What is the optimum temperature for catalyses? For any chemical reaction, the reaction rate enhances with temperature, so the higher the temperature, the faster the rate. For a

Determine the statement- the evolution of color vision, Based on your readi...

Based on your reading of the article entitled "The Evolution of Color Vision", which of the following is a false statement? A. Trichomatic vision is found in all male and femal

What is gastrulation, Q. What is gastrulation? How during gastrulation are ...

Q. What is gastrulation? How during gastrulation are the first two germ layers formed? What are these germ layers? Gastrulation is the process through which a portion of the bl

Define human digestive system, Q. Which organs of the body is part of the h...

Q. Which organs of the body is part of the human digestive system? The digestive system also known as "systema digestorium" or gastrointestinal system is composed of the digest

What is the normal duration of the menstrual cycle, What is the normal dura...

What is the normal duration of the menstrual cycle? How does the calendar contraceptive method work? The normal duration of the menstrual cycle is 28 days but it can vary betwe

Craninal nerves, Craninal nerves: Cranial nerves take their origin f...

Craninal nerves: Cranial nerves take their origin from different areas of brain  Some of them are sensory, some are motor and a few are mixed nerves. There are 12 pair

Supply of animals in lab, Supply of Animals: Lab animals must be obtained ...

Supply of Animals: Lab animals must be obtained from accredited dealers and by accredited dealers, we mean suppliers in the business of supplying animals for lab use, and not from

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