Calculate what is the surface area to -valume ratio of a cube whose sides are 3cm long?

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.