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I don't understand when I use the imperfect tense and when i should use the perfect tense!

The imperfect and perfect tenses are the two main past tenses used in french but it can be a bit tricky knowing when to use each one!I find that the easiest way of thinking about it is to think of the imperf...
RF
Answered by Ruth F. • French tutor
2409 Views

Explain the key steps in mitosis.

Mitosis is the way in which cells divide. Once one cell has undergone DNA replication, it contains 2 sets of chromosomes ( diploid ). Once mitosis has occurred, there will be two identical haploid cells. Ste...
AG
Answered by Amy G. • Biology tutor
3165 Views

How can I differentiate prokatyotic and eukaryotic cells?

The main difference between these two cell types is that eukaryotic cells have their DNA collected inside the nucleus, while prokaryotic cells lack nuclei. Instead, they have a circular piece of DNA called t...
OA
Answered by Omar A. • Biology tutor
3923 Views

Read brief descriptions of all of the characters and use the table to align the description paragraph letter to the correct name.

A typical Spanish GCSE question asks the student to read a series of small paragraphs, that are character descriptions. Each description has the same sort of information, but of course varying according to t...
BA
Answered by Blanca A. • Spanish tutor
2239 Views

Solve 2x^2-14x+12=0

Firstly, we can divide through by 2 to get a simpler form of the equation: x^2-7x+6=0. To solve this quadratic equation we need to factorise it. We do this by splitting it up into two brackets which would mu...
FA
Answered by Ferdous A. • Maths tutor
4673 Views