Answer the following :- (1) what is a digestive juice?, (2) what is a gland ? which are the digestive glands ?, (3) what is mean by a system in a body ?, (4) what is meant by circulation of blood ?, (5) what is the function of the excretory system ?, (6) what is the nervous system made up of ?, (7) what is the function of the skeletal system ?
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(1) Digestive juice is the secretion that brings about digestive processes after eating food.
(2) An organ that secretes certain substances is called a gland. Salivary glands, liver and pancreas are the glands.
(3) A group of organs that work together to carry out a particular function of the body is called a system in a body.
(4) The process of keeping blood flowing through all the parts of the body is known as circulation of blood.
(5) The excretory system expels the waste substances that are formed in the body.
(6) Nervous system is made up of brain and the network of nerves that run throughout the body.
(7) The skeletal system gives shape and support to the body and also gives protection to the vital organs of the body.
(2) An organ that secretes certain substances is called a gland. Salivary glands, liver and pancreas are the glands.
(3) A group of organs that work together to carry out a particular function of the body is called a system in a body.
(4) The process of keeping blood flowing through all the parts of the body is known as circulation of blood.
(5) The excretory system expels the waste substances that are formed in the body.
(6) Nervous system is made up of brain and the network of nerves that run throughout the body.
(7) The skeletal system gives shape and support to the body and also gives protection to the vital organs of the body.
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