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!
Secondary Egg Envelopes
These are secreted by oviducts and other accessory parts of genital organs while the egg is passing through them from ovary to the exterior.
a) In ovoviviparous sharks the egg is surrounded by a hard shell secreted by shell glands of the oviduct. The shell is drawn out as twisted horns which serve to entangle the egg among sea weeds.
b) In amphibians, the eggs are surrounded by a layer of jelly which protects the egg from adverse effects of sun rays, abrasion as well as from predators (because of its bad taste). The jelly absorbs water and swells.
c) In birds, reptiles and monotremes, the secondary envelopes include the white of egg surrounding the yolky ovum, followed by inner and outer shell membranes (which are in close contact with one another) and the outermost calcareous shell which is 'porous. The shell is elastic and compressible when the egg is laid but it hardens on exposure to atmosphere.
Explain the Phase Contrast Microscop? Unpigmented and unstained living cells can be easily observed by phase contrast microscope. It has a special objective and a condenser th
Explain the Management of Furcal Perforation 1 st isolate the perforation site. If the perforation is mechanical accidentally occurred: a- It is probably
Ask question #Minimum 100 words what is joint accepted#
Pulmonary edema is life-threatening condition and therefore, treated as a medical emergency. As is the case with chronic stable heart failure, identification and correction of any
character and classification of pigeon
Indications for Surgery : Echocardiography or right heart catheterization can quantify tricuspid stenosis. It is categorized as Tricuspid valve repair is advised when ther
The introns are the portions of genomic DNA which are transcribed (and hence present in the primary transcript) but are then spliced out later. They therefore are not present in th
J o h n e ' s disease It is also known as paratuberculosis characterized by chronic enteritis and progressive weakness in dairy animals. E t iology: Mycobac
Q. Describe some Food borne disease? Food borne diseases are caused by the ingestion of foods containing toxic or infectious agents. In India, the diseases transmitted by foo
Q. Can you explain Tannins? Tannins are another class of compounds which interfere with the absorption of minerals like iron and reduce the availability of proteins by bindin
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