alleryEndocrine glands are different from other glands because they:
ARelease secretions through a duct
BPour secretions directly into blood
CManufacture sweat from blood
DStore digestive enzymes in vacuoles
Answer & Solution
Correct answer: B. Pour secretions directly into blood
1. Glands are classified by how they deliver their secretions.
2. Endocrine glands are **ductless** — they pour hormones **directly into the bloodstream**.
3. Exocrine glands (sweat, salivary) use ducts to reach the surface.
4. Hence the defining feature of endocrine glands is that they are ductless.
_Source: Selina Concise ICSE Class 8 Biology Ch 5 "Endocrine System and Adolescence", Key definitions_
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