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O Level Biology Practice Test 163

Herbicides: O Level Biology Quiz Answers PDF - 163

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Biology Quiz Online: Herbicides: O Level Biology MCQs PDF Download - 163

MCQ: Miscarriages in women may be due to intake of

A) carbon dioxide
B) polluted water
C) water containing dioxins

MCQ: Number of red blood cells produced every second is

A) 10 million
B) 15 million
C) 20 million
D) 25 million

MCQ: Sperm duct from each side passes into the

A) ureter
B) rectum
C) testis
D) abdominal cavity

MCQ: Carbohydrates (CnH2mOm) include all but

A) chitin of the arthropods
B) sugar
C) cellulose
D) dietary fiber

MCQ: Xylem tissues are also called as

A) wood
B) supportive
C) lignin
D) all of above

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