Liquids have a definite shape and volume.
true or false

Wich organism obtains its energy from dead or decaying matter

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

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?