Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Contraction of the pupil in bright light demonstrates which deeper principle of coordination?

Answer and explanation

Correct answer: Receptors detect a stimulus and effectors produce a controlled response.

Bright light is the stimulus, and light-sensitive receptors in the eye detect its increased intensity. Nervous signals then reach the muscles of the iris, which contract to make the pupil smaller and limit the amount of light entering the eye. This is a coordinated, largely involuntary response, so option A is correct. The other choices confuse reflex coordination with conscious will, hormone action, or blood-glucose regulation.

Related tags

Pupil ReflexReceptorsEffectorsControl And CoordinationWorld Of LivingScienceClass 10 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.