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Glucose is absorbed by diffusion into the bloodstream./ Then blood delivers glucose to muscles in capilleries.

Any two from:acid in the stomach kills pathogens in food/ skin forms a barrier or produces antimicrobial secretions/ hairs in the nose trap pathogens/ trachea or bronchi has mucus which traps pathogens

Preparation: This is a complex question requiring several strands of knowledge. It is best to break down the question into smaller chunks and answer each of those, to gain maximum marks. ...

DNA, or deoxyribonucleic acid, is a doubled-stranded helix made up of nucleotides. Each nucleotide has one of four bases attached to it. The bases of the nucleotides of one strand base pair to the complim...

The Hardy-Weinberg principle is used in population genetics. Population genetics is the study of allele frequencies in populations and how they change over time. There are 2 equation used in the H...