A gland is a structure which secretes a specific substance in the body. Endocrine glands are ductless glands which secretes a chemical substance called hormone. Being ductless gland they release their ...
The questions in this quiz are suitable for GCSE biology students studying hormones and nerves, negative feedback systems, thyroxine and adrenaline, and type 1 and Type 2 diabetes. If you struggled ...
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