O Level
Biology MCQs
O Level Biology MCQs - Subtopic
Circulatory system Multiple Choice Questions (MCQ) to solve circulatory system quiz answers PDF worksheet, O level biology test for online courses. Practice transport in mammals Multiple Choice Questions and Answers (MCQs), "Circulatory system" quiz questions and answers for SAT practice test. Learn production of antibodies, organ transplantion and rejection, free online biology, blood and plasma test prep for two year degree programs.
"Pulmonary veins carry" Multiple Choice Questions (MCQ) on circulatory system with choices red oxygenated blood, bluish red deoxygenated blood, deoxygenated blood from heart to the lungs, and oxygenated blood from lungs to heart for SAT practice test. Solve circulatory system quiz questions for merit scholarship test and certificate programs for online colleges for teaching.
1.
Pulmonary veins carry
2.
When an artery dilates the
3.
In mammals, Endothelium is
4.
When the heart relaxes,
5.
Veins do not require thick walls