Respiration and Circulation Multiple Choice Questions and Answers 1 PDF Book Download
Respiration and circulation MCQs, respiration and circulation quiz answers 1 to learn online elementary education courses. Practice respiration and breathing multiple choice questions (MCQs), respiration and circulation quiz questions and answers for science class. Free e-learning tutorial on respiration and breathing, transport in human beings test prep for study science online with tests.
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MCQ on Respiration and Circulation Worksheets 1 PDF Book Download
MCQ: Ribs moves upwards and outwards when we
MCQ: More than half of total blood volume is the
- red and blood cells
- all of them
MCQ: Special organ in mammals, birds and reptiles is
- air sacs
MCQ: Platelets help in blood
MCQ: Circulatory system of human is composed of
- blood vessels
- all of them