Egg envelopes, Biology

Assignment Help:

Egg Envelopes

Like any other cell, all the eggs are covered by the cell membrane or plasmalemma It is with two layers of about 50 A? (unit membrane) separated by a gap of 60 A?. In addition to plasmalemma, the eggs of practically all animals are surrounded by special egg envelopes (or egg membranes).

Based on their origin, types of egg envelopes are

  • Primary or
  • Secondary ones.

Related Discussions:- Egg envelopes

Show species with exoskeleton, Q. Which other phylum of the animal kingdom ...

Q. Which other phylum of the animal kingdom present species with exoskeleton? Arthropods present exoskeleton made of chitin. Echinoderms do not have exoskeleton but they presen

Define energy requirements during surgery, Define Energy Requirements durin...

Define Energy Requirements during Surgery? The energy requirements of the patient should be based upon his present body weight which should be followed by a comparative assessm

Sense organs, difference between optic nerve and auditory nerve

difference between optic nerve and auditory nerve

Explain the urinary excretion test - riboflavin status, Explain the Urinary...

Explain the Urinary Excretion Test - riboflavin status? Urinary excretion of riboflavin is determined at different levels of intake. Under conditions of adequate riboflavin int

Modern viral diseases, Important Modern viral diseases By  extensive us...

Important Modern viral diseases By  extensive use of vaccination and chemotherapy. Certain  serious viral diseases of the past. Like smallpox. Have been completely or largely e

Total artificial heart in circulatory assist devices, Total Artificial Hear...

Total Artificial Heart :  Jarvik seven was the first successful total artificial heart supporting the patient for 112 days. The disadvantage is that the patient has to be connecte

Tapeworm, life cycle of tapeworm in detail

life cycle of tapeworm in detail

Determine the treatment modalities of cis therapy, The protocol includes fo...

The protocol includes four treatment modalities: A = Mechanical Debridement In this the patients are re-instructed in oral hygiene and motivated to initiate and continue m

Evolutionary evidence, describe the discovery of new fossil evidence for ev...

describe the discovery of new fossil evidence for evolution

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd