Yes it is an example of friction.Also a sled sliding across the snow or ice
DNA/fingerprints are all unique, therefor it is easy to match a fingerprint to a person thus they use this mechanism in criminal investigations because only one person woul have matching DNA to the prints on the scene, and that is the criminal.
Hope this helps :)
Answer: In the taxonomy of Linnaeus there are three kingdoms, divided into classes, and they, in turn, into orders, genera (singular: genus), and species (singular: species), with an additional rank lower than species. a term for rank-based classification of organisms, in general.
Both have phosphate-pentose back bone, as well as both have adenine, cytosine and guanine bases.
2.5g
10÷2=5
5÷2=2.5
everytime it completes a half life, you divide the number by two