Please help keep getting botted by some guy trying to use bitly with a .exe. Questions 1-4 thanks!

Describe speciation of the galapagos island finches in terms of geographic isolation

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c