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Q. What are the elements that constitute the internal ear? What are the functions of those structures?
In the internal ear there are the semicircular canals and the cochlea. The fluid that fills the cochlea receives vibration from the ossicular chain of the middle ear and transmits the pressure to the semicircular canals Within the semicircular canals the pressure variation of the filling fluid moves cilia of the hair cells of these structures and the hair cells then generate action potentials that are transmitted to the brain through the auditory nerves.
What are biopolymers? Polymers are macromolecules made by the union of various smaller identical molecules, called monomers. Biopolymers are polymers present in the living bei
Advantages Durability of these vales are long lasting. Disadvantages Need for anticoagulant therapy is life long. Risk of thrombo-embolism is hi
Coal can be classified into following categories in the order of rank. Peat: peat is a brown and fibrous mass. It is the first stage of coalification. It is not used as
What makes the cluster of atoms of carboxylic acid functional group an acid? a) a non-polar O-H bond near another electronegative oxygen. b) an ionic O-H bond near another el
How is a disease-resistant plant selected for successful breeding? Why is the process of fertilisation in a flowering plant referred to as double fertilisation? Explain. Nam
FUNCTIONS (1 ) Cell secretion - Golgi body is concerned with secretion (export) of macromolecules. Secretion involves three steps:- (a) Golgi body receives the mat
Ontogeny: This is the study of history of an individual. Ontogeny is also known as ontogenesis and morphogenesis. Ontogeny describes the origin or the development of an organism -
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Define Shell Fish as a rich source of protein? Information on shellfish is fragmentary and incomplete. In shell fish, the shell comprises of a large portion of live weight of t
Why Vegetable and Fruit are important for human body? The vegetables and fruits add colour and variety to our diets in addition to providing a host of essential nutrients and p
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