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!
Spermatophores
Many non-chordates do not release free sperms during copulation. They have a mechanism to bundle and enclose a number of sperms in a sheath usually made of gelatinous material. Such bodies are called spermatophores. Most insects, the centipedes and certain molluscs produce spermatophores. Male centipede emits spermatophores and places it on a web already made. The female picks up the spermatophores and takes it into her genital opening. In many male cephalopods such as Loligo and Argonauta one of the arms gets specialised for the transfer of spermatophore into the females. Such an arm is called hectocotylized arm. The spermatophore, after having been deposited in the female, finally releases the sperms which move into the female ducts or the spermathaca.
Determine the food sources of riboflavin? The food sources of riboflavin include: 1. Rich sources: Liver, dried yeast, egg powder, milk powder. 2. Good sources: Who
Define Prognosis of Eating Disorders? About 50% of the patients recover fully from anorexia nervosa and achieve normal weight, 30% improve but have a partial recovery and 20% w
The five kingdom systems To cope up with above discussed problem a number of alternative classificatory schemes have been suggested with more than two kingdoms. The one which h
Absorption of amino acids and peptides Generally, the dietary proteins are almost comp!etely digested to their constituent amino acids and these are rapidly absorbed from
Acute Bronchitis: Acute bronchitis is inflammation of one or more bronchi and occurs specifically in children younger than four year?. It is usually associated with previ
Q. What is the relationship between concentration gradient and passive and active transport? Passive transport is the movement of substances across membranes in favour of their
What is the function of the iris and of the pupil? The iris works like the diaphragm of a photographic camera as it has muscles that contract or relax varying the pupil diamete
Define Conditions associated with increased need for Vitamin A? Conditions and populations associated with increased need for vitamin A includes young children particularly t
which organism are called primitive and how are they different from the so-called adavnced organisms
Magnesium - It is available in most of the plants, especially vegetables. By its deficiency diarrhoea is caused. Its important functions are - (a) Along with c
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