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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

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...

Diffusion is a passive process whereby molecules move from areas of high to areas of low concentration, down the concentration gradient. Osmosis is also a passive process however only refers to movement o...

Similarities both are eukaryotic cells and therefore have a nucleus they both have cell membranes which can control what enters and exit the cell they both contains cytoplasm - this is where reactions is ...

they don't have a nucleus, the DNA is present in cytoplasm. prokaryotic cell has a cell membrane that controls movement of molecules in and out of the cell. prokaryotic cells also have cell walls that pro...