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.
How is the chromosome region where the centromere is located called? How are chromosomes classified in relation to the position of their centromere? The chromosome region where
Describe about the term - Neuropsychological assessment Neuropsychological assessment has its roots in neurology, the branch of medicine that focuses on the nervous system and
Q. What is Secretary diarrhoea? Secretary diarrhoea: It is a result of active secretion OF electrolytes and water by the intestinal epithelium caused by bacterial and viral inf
Q. Concerning their respective intermediate hosts how different are Taenia solium and Taenia saginata? The midway hosts of the Taenia solium are pigs and the intermediate hosts
Explain The ECG and cheast X- Ray? The ECG and Chest X-ray: If there is a suspicion of heart disease on basis of the history or physical examination an ECG and a chest X-ray
Carbohydrates are the next important nutrients as they have to perform a variety of functions such as: 1) Provide major source of energy 2) Breakdown of fatty acids and preve
TESTE S (TESTICLES) - 2 in number (Diarchic). Pinkish in colour. Oval shaped. 4-5 cms long, 2.5 cm wide and 3 cm thick. Mesodermal. In embryonic stage attached to kid
Cutaneous respiration in earthworm. The respiration performed by the skin is called cutaneous respiration In earthworm skin is the only organ of respiration. The skin
Q. Describe Coronary Spasm? Usually spasm develops at the site of subcritical or critical stenoses, but it may also occur in angiographically normal coronary arteries, the so c
How to reduce the stresses on the implant i) There is need to reduce the stresses on the implant - ii) Frequent recall for maintenance or hygiene appointments. iii) Gingi
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