You have 46 chromosomes in each of your somatic cells. if you cut your arm, how many chromosomes would be in each newly formed skin cell?

The body is protected against harmful flu viruses by

What is true of sea slugs in these orders

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?