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Leaves have 4 main adaptations which enable them to carry out photosynthesis successfully. 1) Thin - this allows carbon dioxide to easily diffuse into the leaf cells 2) Transparent epidermis - this allows li...

Homeostasis is the process of maintaining a constant internal environment in the body. An example of this is maintaining the temperature of the body. Human body temperature must be maintained at 37ºC as this...

When investigating graphs, you will often be asked to pick out features of the graph; stationary points being the most popular. You will need to know that a stationary point on f(x) can be found by solving t...

In both writing and speaking assessments, you need to ensure your content has good flow and ticks certain boxes that the examiner is looking for - for example have you used the correct form of the past tense...

Crude oil is composed of many hydrocarbons . The crude oil is heated to evaporate it and the vapour rises. There is a temperature gradient up the column (hotter at the bottom, colder at the top). The differe...