Which shows the levels of organizational hierarchy listed from least complex to most complex? O population, community, ecosystem
O ecosystem, population, community
O community, population, ecosystem
O community, ecosystem, population

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

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?