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!
EMBRYONIC MEMBRANES -
Such animals are called amniota. Embronic membranes are of 4 types -
(i) Yolk sac -
It is formed below the embryo. It contains fluid (no yolk)
It is double layered, made up of outer mesoderm and inner endoderm. First organ to form R.B.C.
(ii) Amnion -
It encloses a fluid filled space amniotic cavity. It surrounds complete embryo.
The embryo is suspended in the amniotic cavity by an umbilical cord.
The main b.v. from the placenta reach the foetus through the umbilical cord.
Amniotic fluid is derived from the foetal kidneys & bladder i.e. it is foetal urine.
Amniocentosis is method to detect sex of foetus & chromosomal defects.
(iii) Allentoise -
A small sac., consists of endoderm inside & mesoderm outside. It is excretory in nature, stores nitrogenous waste.
(iv) Chorion -
It completely surrounds embryo, outerly made up of ectoderm & inner of mesoderm.
Organisation of Nervous System Nervous systems are composed of nerve cells or neurons and glial cells. In the latter half of the 19 th century it was strongly believed that
Anatomy: Anatomy (from Greek words anatomia which means separate and temnein which means to cut open) is a branch of biology and which deals with the study of internal organizatio
What are the secondary roots? In origin how the secondary roots differentiate from shoots? The Secondary roots are ramifications of the primary (major) root. The secondary root
RECAPITUL A TIO N THEORY / BIOGENETIC LAW It was proposed by Muller & Haeckel on the basis of Baer's law. According to it, in the development of animal phylum characters
What is Sports Nutrition? Sports nutrition is a discipline which applies principles derived not only from nutritional but also biochemical and physiological scientific knowled
Q. How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be branchial or cutaneous. Cutaneous respiration takes place due to
write breif notes on oogenesis
Define human beings need energy For Basal metabolism? This comprises a series of functions that are essential for life, such as cell function and replacement; the synthesis, se
Which is the type of nitrogen waste birds produce? Why does this feature, besides being an adaptation to the terrestrial environment, also mean an adaptation to flight? Birds a
Fertilisation: Fertilisation is the process of fusion of male and female gametes. For fusion of male and female gametes, pollen grains have to reach the surface of the stigm
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