Its true i took a test and got this one right
The answer is pilus. This structure joins two bacteria of same species and allow exchange of genetic material in a process called horizontal gene transfer (conjugation). The plasmid of one of the bacteria (the mobile plasmid) is nicked once and the strand moves through the pillus to the other bacteria. It combines with the other plasmid or chromosome to for recombinant dna.
Answer:
When matter changes form, it's not chemical.
Explanation:
Something like melting of an ice cream. Shredding paper. Something that changes physically. Folding paper is another example.
