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hmm for the first one, i'm thinking either a or b
let me look something up though
are you able to choose more than one answer?
well in this article http://www.guideto.com/science-nature/life-science/animals/worlds-top-most-engangered-species.html it says that the giant panda is going extinct because it is unwilling to mate
but low genetic diversity also plays a factor in extinction my guess is that they want the best answer, so it's probably choice A
Okay(: Any idea about the second question?
reading about that now
according to this page http://www.priweb.org/globalchange/bioloss/bl_01.html biodiversity has this upward trend...basically life gets more diverse on it's own as time goes on Note: it may seem the biodiversity has gone down since the destruction of habitats and pollution kills of many species, but humans have only done this for a very short period of time (compared to the overall age of the earth and when life started showing up)
So it would be B? It becomes greater?
yes that's what I would say
okay(: Thank you so muchhh(:
you start with something simple...like an amoeba then that evolves into other things (like a crustacean) then that becomes an amphibian...etc etc
think the tree of life