IGCSE O Level Biology Online Tests
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Free Online Biology Questions and Answers PDF Download
Pus is formed at the site of wound due to
- dead phagocytes
- pathogenic bacteria
- granulocytes
- both dead phagocytes and pathogenic bacteria
All is true for Voodoo lily, but,
- the flies stay away due to rotten fresh smell
- its helps plant in reproduction
- more smelling compounds are vaporized due to heat
- insects are attracted for pollination
Breathing mechanism include
- internal respiration
- external respiration
- expiration
- transportation
Plants can be called as
- autotrophs
- photoautotroph
- heterotrophy
- chemoautotrophs
Enzyme causing breakdown of sucrose into simple sugar (C6H12O6) is
- pepsin
- protease
- saliva amylase
- sucrose
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