For each of the genotypes below (AA, Aa, aa) determine what the phenotype would be.
Purple flowers are dominant to white flowers.

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

What is a dendrite and what does it do?

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?