Nucleic acids also typically contain phosphorous, and nitrogen plays an important structural role in nucleic acids and proteins. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.
Hello there ^ _ ^
The two functions of cilia in protists are :
1. sweeps food toward the protist's food passageway
2. moves a protist forward by beating back and forth
I hope this help!
I think it’s A could be wrong though
