What is the ratio of carbon:hydrogen:oxygen atoms in ribose?

Which of the following is a common danger of commercial fishing?

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.

Several billion years ago which gas was the least prevailant in the atmosphere