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• Within the bacterial population, the cells obtain different types of mutations. - One type of mutation is antibiotic resistance. - Some types of mutations are harmful to the cell, some have no or li...

In terms of actual structure, the classic one is just fine, Introduction, Main Body and Conclusion. However, there's a set of questions you should be able to respond to in each section. I do believe havin...

مصدر مرة

All human body cells have 23 pairs of chromosomes (46 total), 22 pair of autosomes and 1 pair of sex chromosomes.

However, sperm and egg cells only have one set of chromosomes (23 total).

using the method, what two numbers multiply to create -1 and add to make 0 -1 must be 1 x -1 therefore answer is (x+1)(x-1) - is it clear how the single x value is cancelled out? x^2 +x -1 -x = x^2 -1