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How does speciation occur?

Speciation can be sympatric (both populations in the same place) or allopatric (populations in different places). Speciati...

Answered by Nicholas G. • Biology tutor

3996 Views

How do you structure an essay in French?

Writing an essay in French can be a daunting task but it can be treated in the same way as writing an essay in English or any language. You must have an introduction, main body through which you explore a...

Answered by Krishmeela R. • French tutor

2802 Views

Explain the sequence of events that occur in the control of the cardiac cycle.

The sino-atrial node depolarises which causes a wave of excitation to pass through the atria (right prior to left) before reaching the atrio-ventricular node. The wave of excitation causes systole of the ...

Answered by Hannah G. • Biology tutor

8486 Views

What is the difference between haploid and diploid cells? (2 Marks)

Diploid cells contain 2 sets of chromosomes (23 pairs of chromosomes) e.g. body cells. Haploid cells contain half the amount of chromosomes as diploid cells (only

Answered by Katie D. • Biology tutor

23725 Views

How should I structure a comparative essay?

There are two main ways in which this can be done.The first is to write about the texts one after the other, analyse one in full in relation to the question focus (e.g. war), and then move onto the other....

Answered by Tutor117948 D. • English Literature tutor

4150 Views