Class 7 Science MCQs (Grade 7) From Textbook
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Class 7 Science Competitive Exam MCQs – Practice Test 13 (Chapter 12)
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The MCQ: A pacemaker is a group of cells in one of the chamber of heart. The chamber is; "Human Transport System" App Download [Free] with answers: left ventricle, right ventricle, right atrium, and left atrium to study online homeschool courses. Solve Transport System Diseases MCQ Questions, download Google eBook (Free Chapter) for school certificate.
A pacemaker is a group of cells in one of the chamber of heart. The chamber is
Atria and ventricles are connected by a
Small cells that make a net on a wound are
The medium for blood cells to flow is
The beat inside the chest (under left rib) is due to
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