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!
Ovule
The ovule, also known as the megasporangium is the forerunner of the seed. It consists of a central mound of tissue called the nucellus, which is enveloped by one or two coverings - the integuments. An ovule ready for fertilization consists of nucellar tissue enveloped almost completely by integument(s), leaving a small pore or opening at the apical end.
This opening, called micropyle is the main passage for the entry of the pollen tube into the ovule. This end of the ovule is generally referred to as the micropylar pole and the opposite pole where funiculus is attached is called the chalazal pole. The ovule is attached to the placenta through a stalk-like structure the funiculus. In the nucellus is present the female gametophyte which is commonly referred to as the embryo sac.
Q. What is the hematopoiesis? Hematopoiesis is the formation of blood cells with other constituent elements of the blood. Q. Where does hematopoiesis occur? Hematopoies
Besides the XY system are there other sex determination systems? Some animals have a sex determination system dissimilar from the XY system. The X0 system is the sex determi
Q. Show the Criteria for Implant Success as given by Albrektsson? Criteria for Implant Success as given by Albrektsson are: 1. An individual unattached implant is immobile w
Air Pollution - Environmental Pollution The threat due to air pollution became apparent only when some severe episodes caused human casualty in USA, Britain (London) and Japan
Difference between beta and gama taxonomy
The vascular tone increases as the arterial size decreases. The tone at any time reflects the effects of excitory and inhibitory pathways. Neurotransmitters, physical forces like s
Fl u o r osi s Continual ingestion of small amount of fluoride through feed or water leads to fluorosis in animals. The toxic effects are based on amount of fluorine inges
Q. How are the excretory systems of the three major arthropod classes constituted? In crustaceans a pair of excretory organs called green glands exists, the green glands collec
EMERGENC E OF CONTEMPORARY BIOLOGY - 1 . Aristotle (384-322BC) - Greek Classified animal species and arranged them in hierarchies. Formulated 'Great chain of
Cellular respiration is the transfer of energy from various molecules to produce ATP; takes place in the mitochondria of the eukaryotes, the cytoplasm of prokaryotes. In the proce
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd