Which of the following has a low concentration of h+?

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?