Human Transport System Multiple Choice Questions and Answers 4 PDF Download

Learn human transport system multiple choice questions, grade 7 science online test 4 for elementary school degree online courses, distance learning for exam prep. Practice what are white blood cells multiple choice questions (MCQs), human transport system quiz questions and answers for science class for class 7 science interactive tests.

Study elementary school science multiple choice questions (MCQs): task of white blood cells is to, for free online courses with choices transport oxygen, defend a body from disease, heal wounds, and refresh heart, what are white blood cells quiz for online mock tests, competitive exams questions and answers after reading theory and textbooks. Free science study guide for online learning what are white blood cells quiz questions to attempt multiple choice questions based test.

MCQs on Human Transport System Worksheets 4 Quiz PDF Download

MCQ: Task of white blood cells is to

  1. defend a body from disease
  2. transport oxygen
  3. heal wounds
  4. refresh heart


MCQ: Yellow pus in wound is actually

  1. red blood cells
  2. plasma
  3. platelets
  4. infected white blood cells


MCQ: Deoxygenated blood is pumped to

  1. arteries
  2. lungs from heart
  3. heart from lungs
  4. veins


MCQ: Life span of red blood cells is about

  1. 100 days
  2. 200 days
  3. 300 days
  4. 400 days


MCQ: If bacteria are taken over by white blood cells, their life span

  1. decreases
  2. increases
  3. remains same
  4. may increase or decrease