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The natural environment is a symbiosis of thousands of species. For a given area, the variety of species is called its biodiversity. An environment with a high biodiversity is often describes as healthy. ...
Ce is either a « pronom démonstratif » that precedes the verb être (ce sont, ce sera…) or before a « pronom relatif » (ce que, ce dont…), but it is also a « determinant...
Mitosis and meiosis are ways in which a cell dividesmitosis begins with diploid body cells whereas meiosis begins with diploid cells in a sex org...
x = 4.5y = -1.5To answer this question, first, rearrange the first equation to make y the subject: 5x + y = 21 --> y = 21 - 5xYou can now substitute this value of y into the second equation: x - 3(21 -...
Via inspection, one can factorise this via the difference of squares; since a^2-b^2 = (a+b)(a-b), therefore:100-x^2 = (10-x)(10+x)
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