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Explain the gaps within an absorption spectrum and where this may commonly occur in the universe

The gaps within an absorption spectrum occur when the light that is measured has passed through a medium that has absorbed some photons. The photons that the medium absorbs are specific to the element that t...
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Answered by Felix D. • Physics tutor
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How does allopatric speciation work?

Allopatric speciation occurs when the population of a species becomes divided and the two (or more) groups are isolated from one another. Different factors in the environment of each group will affect the pr...
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Answered by Georgia W. • Biology tutor
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Explain what is meant by the term ‘global village’ and give a few examples to highlight this.

The term global village refers to the phenomenon of Globalisation and the idea that over recent years, the world has become a highly connected place where places , people , things and societies have become i...
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Explain why the binding of one oxygen molecule to haemoglobin makes it easier for a second molecule of oxygen to bind.

The binding of the first oxygen molecule changes the tertiary and therefor the quaternary structure of the haemoglobin molecule, therefore exposing another binding site making is easier for the second molecu...
Answered by • Biology tutor
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Outline and evaluate the biological explanation of aggression (16 marks)

AO1 is worth 6/16 marks and so should be no longer than 1-2 paragraphs. This should include any key theorists and studies as well as addressing ‘outline’ portion of the question. This could include discussio...
Answered by • Psychology tutor
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