IGCSE O Level Biology Practice Test 79

Mammalian Skin Quiz PDF: Questions and Answers - 79

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Mammalian Skin Questions and Answers PDF Download: Quiz 79

MCQ 391: No shivering happens on a

A) cold day

B) warm day

C) during physical activities

D) when excess sebum is produced

MCQ 392: In willow trees, the cotton wool is mostly made of

A) air ducts

B) air floats

C) cellulose

D) starch

MCQ 393: Bread and cereal group is rich in

A) minerals

B) carbohydrates

C) fats

D) vitamins

MCQ 394: To produce penicillin, the main fermentable source in the culture is

A) glucose

B) lactose

C) sulphate

D) sugars

MCQ 395: In homeostasis ultrafiltration retains

A) platelets

B) fats

C) proteins

D) all of above

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