There is chlorophyll a and chlorophyll b.
there R siX types of chlorophyll find in plants.......... the Chlorophyll a,b,c1,c2,d and f. A is found universally, b is found in mostly plants, c1 and c2 is found in varous algae, d OS found in the...
Eggs and sperm
The two types of guards are the point guard and the shooting guard, and the two different types of forwards are small forwards and power forwards.
Two types. By saying there are two 'types' you are already stating that there are 2 differentthings and so the word 'different' isn't necessary.