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.
A microbiology student isolated a hypothetical bacterial cell that seems to quadruple every generation. Knowing that binary fission is an exponential function, derive a mathematica
Define Reagent for Separation of Amino Acid by Paper Chromatography? The following reagents will be required for carrying out the experiment: 1. Amino acid solution- Weig
What is Muscular dystrophy Muscular dystrophy :- Defects in the muscle due to faulty nutrition.
To which direction does the growth of one side of a stem, branch or root induce the structure to curve? While one side of a stem, branch or root grows more than the other side
Explain the Laminar Flow Hood - Biological Safety Cabinet? It illustrates the laminar flow hood. As you can see, this biological safety cabinet contains HEPA (high efficiency p
Explain the Probiotics in Foods? Yoghurts have been supplemented with probiotic strains of bifidobacteria and Lactobacilli. Milks fermented solely by intestinal isolates of lac
Is there a difference between something that is alive and something that is a living organism?
Where can RNA be found within cells? In the eukaryote cell nucleus RNA can be found dispersed in the nuclear fluid, with DNA, and as the main constituent of the nucleolus. In c
Starr-Edward (S-E) Silastic Ball Valve Prosthesis : This was introduced in 1961 by Albert Stm and has different models for mitral and aortic positions. It is a cage and b
flowers formation without any leaves?
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