G) Explain what happens to the surface area-to-volume ratio as there is an increase in size. Why does this mean that large multicellular animals
generally need a transport system?
(5)

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?