What do comets and asteroids have in common? They are made of ice.
They orbit the Sun.
They are made of metal debris.
They are at the center of the solar system.

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.