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Bacteria (prokaryotes) 1-5 micrometers, contain RNA and DNA, can synthesise and metabolise protein, generally free livingMajority are harmless, but a certain small list can cause infectious diseasesOne of...

The ancestral species is split into two populations by a geographic barrier, which prevents gene flow. Mutations arise which causes genetic variation between the populations. There are different environme...

The solute potential of the blood plasma would be less negative or higher. Higher solute potential = higher water potential. 

Water moves via osmosis from areas of high water potential to low water...

We see that the numerator is a quadratic, so we factorise it to obtain:

(2a + 1)(a + 3)/(a + 3) = 2a + 1

Since a is a positive integer, we know that 2*a + 1 will always be an odd nu...

Use of a^2+b^2=c^2 must be included in the answer.

Furthermore the numbers must be put in the above equation to give: 5^2+12^2=c^2

This must then be solved to give: 169^0.5=c

The answ...