Search over 10,000 free study notes

· Solvent – Good for polar substances (salts, sugars, simple alcohols) · Heat Capacity – Energy to raise 1kg water by 1 o K. Keeps blood temperature stable · Heat of Vaporisation – Good for sweat, absorbs a ...

Aerobic respiration is a process that releases energy from a respiratory substrate (e.g. glucose) by fully oxidising it. Energy is released in the form of ATP; Carbon dioxide and Water are released as by pro...

The alveolar epithelium is very thin, just one cell layer thick. This means the diffustion distance is small, therefore diffusion of gases occurs rapidly. Remember that diffusion is the net movement of parti...

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 filaments have many pro...

Reproductive separation occurs, this could be through geographical separation . (1) Therefore no interbreeding in the population. (2) This results in separate gene pools . (3) Variation due to random mutatio...