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!
Autotomy and Regeneration
Shedding of body parts in self-defense to avert the attention of the predator-enemy or in any other emergency is a type of autotomy (auto: self, tomy: cutting). The most familiar example of autotomy is a breaking off of the tail in the common house lizard between the chordates, but the phenomenon is far much more common among the non-chordates. You have already seen that this takes place is many echinoderms. The star fishes and brittle stars can cast off their arms that can regenerate into whole animals. An extremely interesting case of autotomy followed by regeneration is found in a polychaete annelid worm termed as Chaetopterus. It lives permanently inside a U-shaped parchment tube in the muddy bottom in shallow sea water. If the anterior end of this worm is pulled by a predator a constriction between 12th and 13th segments breaks the body into two pieces. The worm loses its head region to enemy whereas the remaining hind portion is left behind in the U- tube. This hind portion contains the gonads and regenerates the front part needed for normal feeding activity. Chaetopterus has been found to have a remarkable power of regenerating a complete worm from a single isolated body segment that is segment 14.
DEFICIENCY DISEASES Animals may suffer from diseases caused by deficiencies of energy and proteins, mineral nutrients and vitamins, which generally occur either due to deficiency
Q. Can you explain Deoxynivalenol Mycotoxicosis? During 1987, an outbreak estimated to have affected over 50,000 people in the State of Jammu and Kashmir, was traced to the c
Title Legal aspects in obstetrical ultrasound Introduction Obstetric ultrasound is an essential component of antenatal care and it is widely perceived to be associated
Q. Describe Bentham and Hookers System? Bernard de Jussieu (1699-1776) tried to classify the plants in Royal Garden, Paris. During this exercise he developed a system of classi
The use of the gums in various foods may affect the following functional properties: 1. Water-binding capacity 2. Rheological properties 3. Capacity to form film or gel
How can Prevent the Symptoms Associated With Food Intolerance? Taking a few simple steps can help prevent the symptoms associated with food intolerance. These steps include:
all of their function on different system
Q. What are persistent organic pollutants (POPs)? The POPs, or persistent organic pollutants, are toxic substances formed from organic compounds. The POPs are made in several i
Water is an essential commodity for survival of life on these plants. The circulation of water and moisture between living organism, atmosphere and earth is called as water cycle
Definition,functions and features of a mammalian lungs
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd