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Chemical Coordination and integration — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYChemical Coordination and integration1 Mark
MCQ
Daily rhythms are usually associated with:
  • A
    Pineal
  • B
    Pituitary
  • C
    Thymus
  • D
    Thalamus
✓

Answer

  1. Pineal

Explanation:

The pineal gland is a small endocrine gland in the vertebrate brain. It produces melatonin, a serotonin derived hormone, that affects the modulation of sleep patterns in both seasonal and circadian rhythms.

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