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Metabolic rate is the speed at which chemical reactions take place in our bodies
- Running through past exam papers
- Reading, memorising, and re-writing
- Taking regular breaks
There are two main reasons that smoking can increase blood pressure:
Fish use specialised surfaces called gills to carry out gas exchange.
Gills are highly folded, giving them a large surface area and maximising the efficiency of gas exchange. The gill fi...
Reproductive separation occurs, this could be through geographical separation. (1)
Therefore no interbreeding in the population. (2)
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