The cookie cutter shark feeds by taking a bite of flesh out of whales and large fish. the shark does not kill the larger fish it feeds on. is the shark a predator or a parasites? why?

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

What is the difference between a scientific hypotheses and a scientific theory?

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?