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O Level Biology MCQs – Certification Test 519

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MCQ: 519

In expiration in process of respiration

  1. the diaphragm relaxes and arches upwards
  2. air enters the lungs
  3. ribs move upwards
  4. sternum moves up and away from backbone

What is Respiration Competitive Exam – O Level Biology App & e-Book MCQ

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What is Respiration MCQ App (iOS & Android)

What is Respiration MCQ App

O Level Biology MCQ App (Android & iOS)

O Level Biology MCQ App

A level Biology MCQ App (Android & iOS)

A level Biology MCQ App

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9th Grade Biology MCQ App