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Explain the concept of natural selection. Give an example.

Natural selection is a theory that became popular after Charles Darwin work and states that traits of living organisms are selected according to their ability to adapt to the environment. It implies that eve...
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Answered by Jessica F. • Biology tutor
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Cite examples of biotic and abiotic factors that influence living organisms in an ecosystems.

Abiotic: temperature, rainfall, oxygen, nutrient availability Biotic: competition and predation between species, migration
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Answered by Jessica F. • Biology tutor
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What are biofuels? Give names of at least two biological sources.

Biofuels are fuels made from organic biomass, i.e., plant material. Sugarcane and sugar beet are sources of biofuels.
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Answered by Jessica F. • Biology tutor
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Explain how soft engineering could protect a coastline

In this question, you need to mention and describe forms of soft engineering e.g beach nourishment, land use management and coastal realignment. It is not enough to only describe the strategy, but provide a ...
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Answered by Hannah D. • Geography tutor
10002 Views

What is the best way to structure an exam-style essay response for Politics?

One of the most important things to remember when writing exam responses is to plan your answers briefly before you start writing, so you have at least a vague idea of where you are going throughout the essa...
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Answered by Ella B. • Politics tutor
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