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!
Structure of the Sperm
The spermatozoa in different animal groups display a wide variety of shapes and sizes but all share a. basic morphological plan. The sperm in most animals is devoid of any stored nutrient materials within itself and is capable of performing locomotion in fluid and semifluid media. The size of sperm may be as small as 0.02 mm (crocodile) or as large as 2 mm (Balanoglossus). The shape of the sperm is species specific. Structurally the sperm of different animals consist of a head, a middle piece and a tail. The account of the sperm structure presented here is based on the studies conducted on mammalian species, particularly, human beings.
Figure: Sperm of some chordates. The break in the flagellum of sperm indicates that a long portion is omitted
Explain Vegetable dehydration It reduces the natural water content below the level critical for the growth of microorganisms (12-15%), without being detrimental to important nu
Q. Illustrate the Plant taxonomy? Plant taxonomy has a long history. It gave birth to several phases of botany but remains exciting, interesting and important because there is
Molecular Hydrogen N 2 -fixing organisms also produce a membrane bound enzyme called uptake-hydrogenase under N 2 -fixing condition. The physiological significance of the pres
The movement of Na + and glucose from the lumen of the intestine across the epithelial cell to the blood sets up a dissimilarity in osmotic pressure across the cell. As
Which one of the following is used as vector for cloning genes into higher organisms ? 1. Baculovirus 2. Salmonella typhimurium 3. Rhizopus nigricans 4. Retrovirus
excretory organ of agama lizard
advantages of cuticle of anthropodes
Define the role of riboflavin in Drug and lipid metabolism? Flavoproteins catalyze dehydrogenation reactions, as well as, hydroxylations, oxidative decarobxylations, deoxygenat
Hormones secreted by gonads: 1. Testis and ovary are called gonads in the human body. 2. Apart from producing gametes, gonads also secrete hormones. Testis : Testis s
Explain the Disadvantages of Fixation? Fixation has following disadvantages also. These are highlighted herewith: (i) It distorts the cell's appearance. (ii) Motility can
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