O Level

Biology MCQ Questions

O Level Biology MCQs - Chapter

Excretion: O Level Biology MCQ with Answers p. 10

Excretion O Level Biology MCQ with answers PDF, excretion o level biology quiz worksheets with answers key, O level biology worksheet 10 for online courses. Learn excretion and egestion Multiple Choice Questions (MCQs), Excretion O Level Biology quiz with answers for admission and merit scholarships test. Learn excretion and egestion, formation of urine, mammalian urinary system career test to learn online certificate courses.

"Blood entering the kidney has" Multiple Choice Questions (MCQ) on excretion o level biology with choices less carbon dioxide, more carbon dioxide, less oxygen, and more oxygen for online colleges that offer financial aid. Practice excretion and egestion quiz questions for jobs' assessment test and online courses for online college courses.

MCQs on Excretion O Level Biology


Blood entering the kidney has

more carbon dioxide
less carbon dioxide
less oxygen
more oxygen


Number of pyramids in mammals can be up to

4 to 8
8 to 12
12 to 16
16 to 20


Renal artery and renal vein join kidney at

renal pelvis