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The cell has an outer membrane known as the cell membrane, which envelops the cytoplasm. The cell also contains mitochondria which work to provide the cell with energy (in the form of ATP) and a nucleus, ...

When starting learning Portuguese, some may wonder whether they need to opt for European (Portuguese as spoken in Portugal) or Brazilian Portuguese. The differences lie mainly in pronunciation, although t...

1. mRNA is only single stranded, whereas DNA is a double stranded molecule 2. mRNA has Uracil instead of thymine which is found in DNA 3. mRNA contains no introns as they have been spliced out, however...

As you go across the period, the number of protons increases, however the amount of shielding stays the same, so attraction of outer electrons to nucleus increases and more energy is required to remove an...

First of all, I would ask the student to read the text out loud in order to work on pronunciation. Then, we would replace the text in its context: book it has been taken from, synopsis of the original boo...