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. What are the problems that vertebrates needed to solve to adapt to the terrestrial environment since they came from the aquatic habitat? How evolution does solve those problems?
The main problems vertebrates coming from water needed to solve to adapt to the terrestrial environment were the following: the problem of elimination of wastes in a medium where water is less available, the problem of protection against nocent solar radiation, the problem to avoid dehydration, the problem of gamete locomotion in the environment for fecundation, the problem of gas exchange, earlier done by direct contact of water with gills, the problem of body support, since it was water that played this role in fishes.
Solutions for the dehydration problem: thicker and impermeable skin, permeable and moist skin or to lose less water like in amphibians. Solution for the excretion problem: excretion of urea also excreted by uric acid or chondrichthyes, substances that need less water to be dissolved. Solutions for the problem of protection against radiation: skin pigments that filter harmful radiation, feathers, carapaces or hair. Solution for the gamete movement problem: internal fecundation except for most amphibians that have external fecundation. Solution for the gas exchange problem: appearing of lungs and airways. Solution for the body support problem: further development of bony and muscular structures, like claws and limbs.
Q. What is Tricuspid valve annuloplasty? It depends upon the cause of tricuspid regurgitation. Specific therapy is directed towards the particular cause of pulmonary artery hyp
please enlighten me on proteins and forensics
Q. What are the male pronucleus and the female pronucleus? The female pronucleus is the proper haploid nucleus of the egg cell and Male pronucleus is the haploid nucleus of the
Define Steps in the Development of Exchange List? As mentioned above, when we group together similar food items so that each supplies a constant amount of a particular nutrient
Define about the Resistant Starch? Until 1980's starch was thought to be completely hydrolyzed and absorbed from the small intestine of man, independent of its source, type and
Define the density of egg The density of egg products is not affected by dehydration. When a dried egg product is reconstituted to its natural solids, it has about the same d
#question.what is protostomous and deuterostomes development.
Growth and development of multi cellular organisms The normal growth and development in all multicellular organisms occur in a programmed manner. The new born babies have
Discuss why Obelia is considered to be of special interest in Zoology as an animal showing an intermediate grade of organization.
How much SDS do you need for 50 ml of a 20% SDS solution in water(weight/ volume)? SDS is a solid.
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