Although no blueprints of the pyramids have been found, what evidence suggests humans, not aliens, built the pyramids?
remains of large work horses
an ancient rock quarry
advanced forms of technology
wheeled wooden carts

yes? sounds right, but you didn’t ask a question.

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: