IGCSE O Level Biology Practice Test 143

Physical Environment: Ecology Quiz PDF: Questions and Answers - 143

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Physical Environment: Ecology Questions and Answers PDF Download: Quiz 143

MCQ 711: All parts of the Earth where life can be found are called

A) populations

B) ecosystems

C) biosphere

D) communities

MCQ 712: Cellulose (C₆H₁₀O₅)_n is a form of

A) monosaccharide

B) disaccharides

C) polymerization

D) Polysaccharides

MCQ 713: Enzyme 'Enterokinase' is found in

A) saliva

B) gastric Juice

C) pancreatic Juice

D) intestinal juice

MCQ 714: High concentrations of carbon monoxide (CO)

A) reduces capacity of blood transport

B) reduces capacity of oxygen transportation through blood in the body

C) is caused due to incomplete fossil decay

D) is caused due to smog formation

MCQ 715: Reproductive nuclei of flower are known as

A) male gametes

B) female gametes

C) male gonads

D) female gonads

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