Can be defined as the diversity of forms of life in an area and within a species; not equivalent to the number of species. 1.biome genetic
2.diversity
3.biodiversity
4.ecological diversity

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Everything that you need in a lab is in your lab

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on