Which of these describes the level of organization of the digestive system?

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?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.