@suresh
Qno.4(i) what are endocrine glands?
ans.endocrine glands are the ductless glans which,with few exceptions, are the discrete group of cellswhich make specific chemical coumpounds called the hormones and secrete them in the stream of blood.Endocrine system consists of some 20 glands/tissues lying in different parts of the body.
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~Miss zoologist~
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