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GCSE Biology Questions and Answers PDF Download
The collapse of xylem tissues is prevented through
- wide lumen
- narrow lumen
- lignin deposition
- presence of pits
Type of energy trapped in dead bodies is in form of
- physical energy
- radiant energy
- chemical energy
- biochemical energy
One of the most common essential component of many co-enzymes is
- vitamin D12
- vitamin K
- vitamin E
- vitamin B complex
All are wrong for white blood cells (leukocytes) but
- lack nucleus
- transport oxygen
- lack hemoglobin
- produce antibodies
Function of meninges is to protect
- brain
- heart
- digestive organs
- respiratory system
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