If land-dwelling vertebrates had appeared on Earth 50 million years before they actually did, which of the following scenarios reflects the most predictable effect this change might have had on protostome evolution?

+3 votes

 

  

Protostomes would have outcompeted vertebrates.

  

Protostome groups would exhibit less diversity in feeding structures and reproductive strategies.

  

Protostomes would never have made the water-to-land transition.

  

Protostomes would have evolved into even more diverse groups.

 

asked Dec 29, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

Protostome groups would exhibit less diversity in feeding structures and reproductive strategies.

 

answered Dec 29, 2012 by LeafHy ~Expert~ (895 points)

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