: secrete mucus that protect organs
: secretes enzymes that aid in digestion
: secrete tears
: keep the skin hydrated and soft

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn

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?

Which feature would you expect to find in a population in which sexual selection depends on male competition?