The answer is B An observation about the number or amount of something
Both organs and variety of organisms have bone , body parts like legs , arms and many more.
The correct answer would be A. seal as paramecium, bacterium, and amoeba are all single-celled organisms. Thus, they cannot be an organism with tissues.
Answer: they are all prokaryotes
Explanation: because they all lack a nucleus to retain their DNA
Process of Electron Transport Chain (ETC), is a series of transferring from electron donors to their acceptors. It basically means a transfer from high energy molecule to a low-energy molecule. This process of extracting energy by transfer is classified as a chemical reaction and we see it is the path taken of cellular respiration (NADH) and FADH2) and in photosynthesis, NADPH. It starts with an electron, NADH and FADH2, when the electron donors release a proton gradient and it creates an imbalance. Think of it as a see-saw with one heavy person on one end and a lighter one on the other end. The protons actually attempt to defuse back across this see-saw of a membrane and it releases energy during the cross over which we call Chemiosmosis.