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Before speciation occurs we have a population of individuals of the same species that can freely and successfuly mate with each other. In allopatric speciation a geographical barrier forms (a mountain ran...
The human heart system is described as double circulatory becasue is has two seperate circuits. The first carries blood between the heart and the lungs and is known as the pulmonary circuit and the second...
For example, A(6/5, 19/5), B(2, 9/5), C(5, 3). Show that the line segments AB and BC are perpendicular.
Before we begin the question, it is a good idea to remind ourselves of the d...
Questions like this ask you to solve an equation; this means to find a value of x that when put into the equation allows each side of the equation to be equal.
There are th...
Numerator and denominator of a fraction 6/16 can be divided by 2 to get 3/8.
Numerator and denominator of a fraction 9/24 can be divided by 3 to get 3/8.
Numerator and ...
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