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!
Q. Compared to platyhelminthes which physiological problems have the cylindrical body of nematodes brought? How was that problem solved?
The cylindrical shape of nematodes made impossible the respiration exclusively by simple diffusion among cells since there are tissues far from the external. This problem was solved by the presence of an internal cavity in the body filled with fluid, the pseudocoelom.
The pseudocoelom has the function of distributing nutrients and gases to the body and to collect residuals, besides serving as a hydrostatic base to keep the worm shape. For the fact that the pseudocoelom and the pseudocoelom fluid do not characterize a true circulatory system with blood and heart it is not said that in nematodes the respiration is cutaneous it is considered that these animals still make respiration by diffusion.
Hiatus Hernia: In this type of hernia, cardiac end of the stomach passes through an abnormally wide oesophageal opening in the diaphragm (see Fig. 2.6). Clinical manifestat
What are proteins? How can the protein diversity of living beings be explained? Proteins are molecules made of sequences of amino acids bound by a peptide bond. The genetic
Technological level - Pollution control Air pollution can be reduced by using bag filters, electrostatic precipitators and cyclone separators that separate large and small par
origin of species
What are stains? Microorganisms are difficult to be seen in living state because of their minute, colourless and transparent nature. Moreover, there is limitation of insufficie
Q. What is the evolutionary importance of pteridophytes? As the first pteridophytes, tracheophytes were also the first plants to extensively colonize the terrestrial environmen
Q. Etiological factor of diverticular disease? The causes of diverticular disease are not certain, but several factors may contribute to changes in the wall of the colon. These
green gland in prawn
What are steroids? What are some examples of steroids with a biological function? Steroids are lipids based in an angular combination of four carbon rings, three of them made o
Q What are the kinds of cell respiration? There are two types of cell respiration aerobic cell respiration a reaction with participation of molecular oxygen (O2) and anaerobic
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