what did the impact of the Elwha river dam projects and their removal teach us about human impact on aquatic ecosystems? what lessons could we apply to future project proposals

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

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?