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Risk factor - factors that increase the likelihood of developing a diseaseThey may be intrinsic or extrinsic and include factors like age, sex and smoking - for cancerChemicals in cigarettes (including ta...
Similarities:Molecules move from a higher to lower concentration in both processes - they move down a concentration gradientSo neither process requires energyDifferences:Only water moves by osmosis - whic...
A stem cell is an undifferentiated cell that can differentiate into specialised types of cells such as muscle cells or skin cells. A stem cell can give rise to many cells of the same or different types o...
A population of bacteria will have lots of variation in characteristics due to mutations in the DNA that each bacteria contains. Some of those mutations may allow a bacteria to be resistant to an antibiot...
Genetic information is stored in DNA. Your entire set of DNA can be found in (almost) every single cell of the body. This DNA resides in the nucleus of each cell and is organised into 23 chromosome pairs....
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