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The number of organisms reduces because between each level of the food chain about 10% of energy is lost through movement, through not the full organism on the previous level being eaten as bones and hair...

DNA is replicated within the nucleus of the cell through a process called semi-conservative replication. The first part of the process involves the splitting of the double stranded molecule into two separ...

Relevance: Body needs to make glucose for ATP production. (Energy production)Regulation:Both hormones insulin and glucagon are released from the islets of Langerhan in the pancreas.Insulin: Released from ...

Honey has a lower water potential than the water inside bacterial cells due to its high ionic content.Water moves by osmosis from areas of higher water potential to areas of lower water pote...

Mucous in the trachea traps pathogens Microorganisms in food are killed by stomach acidThe skin forms a physical barrier against pathogens