How was the first periodic table of the elements organized? select one: a. in alphabetical order by element name b. by atomic number of the atoms that make up each element c. by average number of neutrons in the atoms that make up each element d. by average atomic mass of the atoms that make up each element

the answer would be D

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: