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!
Nucellus - Ovule
Enclosed within the integuments lies a homogenous mass of tissue which is termed as the nucellus. This is the tissue in which the female gametophyte differentiates and develops. At an early stage of ovule development, usually an archesporial cell or a group of cells differentiate in the hypodermal region of the nucellus. The archesporial cell may function directly as the sporogenous cell. In such situations, the sporogenous cell also remains hypodermal in position and is surrounded by a single-layer of nucellus, in the micropylar region. Such ovules are known as tenuinucellate. These are commonly seen in Sympetalae.
Figure: Tenuinucellate ovule of Elytraria acaulis. In c and d integuments are not shown.
what is the role of liver for the metabolism of carbohydrates
Define briefly about the Selenium? The element selenium was discovered in 1817 in association with the element sulphur. However, selenium as an essential nutrient remained unre
How is the brain involved in the immune system? A. Immune cells that constitute body's biological defense against infections and toxins, have many things in common with nerve c
what is the warmest and coldest parts of the boy
Q. Role of Exercise and Drugs in management of diabetes? Aerobic exercise for at least 20-30 minutes four or more times a week is recommended. Exercise after meals is preferre
Q. Which is the kingdom of the parasites that cause malaria and Chagas' disease? Those maladies are caused by the protozoans, beings of the kingdom Protista. Q. What is the
How are bacteria classified according to their need for oxygen? According to their necessity of oxygen bacteria are classified into:- a) Anaerobic (those that survive withou
Overgrazing - Degradation of Ecosystem It refers to the condition when the grazing pressure on the vegetation is so intense that it does not recover. Ultimately, there is a lo
Q. What are the major theoretical models that try to explain the formation of the enzyme-substrate complex? There are two major models that explain the formation of the enzyme-
Classifying Organisms You have now seen that the binomial nomenclature gives each species a unique and unambiguous name. It is necessary lo group species into genera and gener
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