Hat is the most commonly and widely used depressant in the united states? marijuana alcohol ecstasy

Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

Asegment of dna that codes for rna and a protein is a