AP Bio questions that I need help on!

<p>Question One:Why is taxonomy considered a work in progress?
Question Two:What are two problems with the five kingdom system of classification?
Question Three:How has the Domain system altered our view of taxonomy?
Question Four:Which is prokaryote is closer to the eukaryotes? List several reasons for your answer.
Question Five:Why did evolution seem to slow 750 to 570 million years ago?
Question Six:Describe a few adaptations essential for the invasion of plants onto land.</p>

<p>1) New fossil discoveries and genetic testing are continually revealing new relationships, and new theories of relatedness between species are continually being formed and debated.
2) Under the five kingdom system, archae and eubacteria were put into one group, despite major differences, and additionally, the kingdom protista was not well defined.
3) The three domains emphasize the differences between eukarya, archaea, and eubacteria?
4) Archaea are closer to eukaryotes than eubacteria. You can look up reasons on your own.
5) There was a major ice age during that time.
6) Development of sporopollenin for waterproofing (water loss was a major obstacle), a sporic life cycle, spores</p>