What do proteins, nucleic acids, and carbohydrates all have in common? A. They all use peptide bonds to form macromolecules.
B. They all contain the instructions for building organisms.
C. They are all formed from the same elements. D. They are all made of chains of amino acids.

c)they are all formed from the same elements

Explanation:

that is carbon,hydrogen and oxygen but e.g proteins have additional like Nitrogen

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: