Which substances are important in forming the structure of the cell​

There are two major classes of nucleic acids

Explanation:

deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the molecule that contains all of the information required to build and maintain the cell; RNA has several roles associated with expression of the information stored in DNA.

always in school geography and mathematics.

( i don't know what exactly this means but i translated it : d )

the answer to the test is 1. b 2. d 3. a. 4. c 5. b 6. a 7. c 8. d 9. a 10. a 11. c 12. b 13. d 14. c 15. a 16. a 17. d 18.b 19. d 20. c 21. a 22. c 23. c.     24. a guateque canpesino is a family gathering brought to the countryside to celebrate harvest time. here at the gathering people sing, listen to music, play the gutair, laud, tres, guiro, dance. they also eat roar pork, rice, and beans. 25. yo soy alta means i am tall. the reason why this sentence uses the verb -see is because the characteristics that is being described is how someone is like.