AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Adrenaline is secreted by the adrenal glands and is released directly into the blood, from where it is carried to different parts of the body.
Source: Chapter 6, Section 6.3 – Hormones in Animals
The question targets two specific facts: (1) the name of the gland (adrenal gland) and (2) the medium into which the hormone is released (blood). Both must appear for full credit. Note that endocrine hormones are released directly into the bloodstream — this distinguishes them from exocrine glands that release secretions through ducts.