Which of the following is a cause of the challenges to Social Security? a. economic depression c. ageism b. longer life expectancies d. increasing dependency ratio

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers

Auser wants to add a thick, dark green border around a chart in powerpoint. the user can do this in chart tools by choosing what

Dna is a polymer of which consist of a sugar, a phosphate group, and a a. amino acids; nucleotide b. nucleic acids; nucleotide c. nucleotides; nitrogenous base d. nucleotides; nucleic acid e. proteins; nucleotide