Trees that avoid extinction in a climate change(bc of global warming)&species are moving north, are those that

Question

possible answers (choose one)... 1. have wind-dispersed seeds 2. have animal dispersed seeds 3. produce well-provisioned seeds 4. tree & all plants are sessile, and typically WILL become extinct under these conditions

Answer 1

2.

The ability of species to adapt to climate change will depend largely on their ability to "track" shifting climate by dispersing colonists.

This is really a guess on my part.  However, I know that you can rule out  #4 because being sessile doesn't prevent seed dispersal.  Also, # 3 isn't likely because having well-provisioned seeds doesn't make the seeds move north.  So that, at least, narrows the correct answer down to #2 or #3.  

There is quite a bit of information/conjecture on this topic.  The two sites below will give you a decent understanding of the factors at play.

http://www.nps.gov/archive/glac/resource...

http://query.nytimes.com/gst/fullpage.ht...

Answer 2

hello,

i stick with 1.

bye,...