How does the dna in prokaryotic cells differ from the dna in eukaryotic cells? i. prokaryotic dna contains uracil instead of thymine. ii. prokaryotic dna is not separated from the rest of the cell by a nuclear membrane. iii. prokaryotic dna is not packaged into chromosomes. iv. prokaryotic dna cannot be replicated?

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

What enzyme is most important for dna replication and why?