I NEED AN ANSWER QUICK PLEASE If you cross an AABb individual with an Aabb individual, what will the genotype ratio be in the next generation? What will be the phenotype ratio?

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

What materials must dams have to produce electricity, and what must occur?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?