Question

Help please?

An archeological student plans to compare the genomes of fossilized marine organisms from Africa and North America to identify how long ago they had a common ancestor. Like most old fossils, the tissue and shell of the organism have been replaced by quartz and calcium rock. What faulty reasoning will the student's research advisor most likely point out?

Answer 1

The genomes would have suffered mutations after the organisms died due to environmental factors, so they will yield incorrect ages.

The rock that makes up the fossils replaced the organisms' tissue and genetic material, so their genomes can't be extracted.

The fossils are on two different continents, so a common ancestor will not exist.

The ancient marine organisms most likely lack a common ancestor shallow enough in the ocean to be reached.

Answer 2

well look at the options, there.

Can't be the first one, mutations will not happen in events like this.
3rd option is false, this has been proven many times.
4th options is false as well.

2nd option is best. :)

Answer 3

I was thinking of that one, I just wanted to be sure. Thank you!