Why opposable thumbs became a common trait in primates

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.

If your blood becomes too concentrated with iona, what will happen to the red blood cells

Number and variety of living organism; includes genetic, species, and ecological types