Question

What inference can correctly be drawn from the diagram shown below?



All of these birds share a common ancestor.

All of these birds adapted to the same conditions.

All of these birds developed at roughly the same time.

All of these birds produced similar offspring.

Answer 1

I think it's A:
All of these birds share a common ancestor.

Answer 2

It's definitely not B:
eg. they have different beaks adapted for different food.

or D... there is no reason to infer their children will look the same.

Answer 3

@Calliope do you agree?

Answer 4

Do you? As PaxPolaris explained, you can narrow down the right answer by looking at which ones you can eliminate because they don't make sense.

Answer 5

Thanks @PaxPolaris the way you narrowed it down was helpful

Answer 6

It was right! thanks alot :)

Answer 7

yes ... the diagram is of Adaptive Radiation.

http://www.pbs.org/wgbh/evolution/library/01/6/l_016_02.html

http://www.pbs.org/wgbh/evolution/library/01/6/images/l_016_02_l.gif