Why is immigration
beneficial to a
population?

there are lots for example:

*they work

*pay taxes

*bring culture from different places

*makes business

i hope this helps

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: