What is one of the functions of nucleic acids?
A) They transmit genetic information.
B) They help produce energy within the cell.
C) They regulate the flow of materials into the cell.
D) They energize chemical reactions within the cells.
Ans: A) They transmit genetic information.
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In biological nitrogen-fixation,
a. ammonia is converted to nitrogen gas. b. nitrogen gas (N2) is converted to ammonia (NH3). c. ammonia is converted to nitrate. d. amino acids are linked into proteins in ribosomes. e. nitrate is converted to ammonia.
Which of the following nutrients is most closely linked to the energy cycle in ecosystems?
A) carbon B) nitrogen C) lead D) sulfur
After the new nuclear membrane forms during telophase of mitosis, the _____________ divides
A.) ribosome B.) cytoplasm C.) mitrochondria D.) DNA strand
All of the following are classified as fungi EXCEPT
A) Blastomyces. B) Coccidioides. C) Histoplasma. D) Mycobacterium. E) Pneumocystis.