Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Organs in animal - Excretion
In all the other animal groups, there are discrete organs which function in osmotic regulation, ionic regulation and nitrogen excretion. These are the contractile vacuoles of protozoans and poriferans, the nephridia of flatworms, roundworms and annelids, the green glands of crustaceans, the coxal glands of arachnids, the malpighian tubules of insects and the metanephric kidney of vertebrates. Depending on whether the nephridial tubule is closed at the inner end or opens into the coelom by funnel shaped structure called nephrostome, nephridia are respectively termed as protonephrldia or metanephridia.
The excretory organs of molluscs, crustaceans and arachnids are actually modified coelomoducts and hence are not true nephridia. With the exception of the contractile vacuoles of protozoans and sponges, the excretory organs are either tubules or aggregates of numerous tubules.
What is parasitism? Parasitism is the ecological interaction in which a being lives at the expense of another. The parasite often does not cause immediate death of the host sin
Hi,I am a graduating student from my course BS in Biology major in Zoology. I was wondering if you guys have any great idea of a good thesis title?
What is Vacuole ? Another structure found only in plant cells is the large central vacuole. The vacuole stores enzymes and waste products, in addition to providing the turgor p
Q. Why is rubella during gestation a threat to the fetus? If taking place during gestation rubella is a dangerous disease because the virus crosses the contaminates fetus and t
Both these neurotransmitter strengthen memory when they are released into the blood stream following learning. Stressful events stimulate release of stress hormones from the adrena
what is feeding mechanism
Feeding Mechanisms of Animals All animals have evolved successful methods for extracting their required nutrition from the environment. Thus we find a diversity of feeding mec
Plant Water Role of Water in Plants You know that water is the main constituent of plant cells. It performs the following major functions Water as a Solvent Water is a v
Q. Is the internal epithelium of the bowel the alike as it was one month ago? The internal epithelial covering of the intestine acts as means of nutrient absorption and as prot
Q. What is an example of intraspecific competition? The Intraspecific competition occurs in practically all species, for instance, the competition of humans for a job.
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd