Question

Which pattern describes the levels of biodiversity across the fossil record?

decreased continuously following the appearance of the first species
decreased and then increased after major waves of mass extinctions
increased continuously following the appearance of the first species
decreased after each major wave of mass extinctions and remained low
remained relatively constant over time

Answer 1

Any guess with this? ^_^

Answer 2

ummmmmmmm

Answer 3

no

Answer 4

lol. AP Bio so hard lol

Answer 5

@petiteme

Answer 6

i just know that it is not A

Answer 7

so what do you think? :)

Answer 8

I'd guess it decreased and then increased after major waves of mass extinction

Answer 9

why?

Answer 10

@petiteme

Answer 11

I've been reading this:

http://complex.upf.es/~ricard/EGECfinal.pdf

Answer 12

Or increased continuously following the appearance of the first species.

Found this on that PDF ^_^

"we have a substantial fossil record of life's development, which shows a number of clear patterns, including a steady increase in biodiversity towards the present punctuated by a number of large extinction events that wiped out a significant fraction of the species on the planet, and in some cases, caused major reorganizations amongst the dominant groups of organisms in the ecosphere."

Answer 13

i think the ans is B . friends.

Answer 14

I was guessing xD Thanks ^_^