Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms?

a. sequence the same gene in both species to compare their similarity.

b. dissect specimens of both species to look for homologous structures.

c. search fossil databases to locate a common ancestor.

d. evaluate cells from both species to determine whether they contain enzymes.

I have two pictures; one of an orange starfish and another of a medium-sized green snake. I am having trouble deciding on this, but I think it is either A or B.

This lesson is : Evidence of Evolution

1.) Which of the following explains why the a bone in a bird's wing is homologous to a bone in a lizard's front leg?

ANSWER: D = the two species have a common ancestor

2.) A portion of the amino acid sequence of an enzyme taken from several other organisms. Place them in order from most closely related to the worm to most distantly related to the worm.

ANSWER: B = Y,Z,X

3.) A = Sequence the same gene in both species to compare their similarity.

4.) C = Vestigial

I got a 4/4 100%
believe me I'm not lying like some other people do and so these are all the answers for the test if any one els needs help. Have a nice day now

It right

1.D
2.B
3.A
4.C

4/4 100%

easiest? Discect

clearly? DNA sequencing
effective? DNA sequecing

Answer should be B

need correct answer2

I'm doing this lesson right now and I don't know it either, but I will type down the answer even if your done with it lol. But for other people who need help I guess :P

3. A. Sequence the same gene in both species to compare similarity.

4. C. Vestigal

3. A. Sequence the same gene in both species to compare similarity.

4. C. Vestigal

I just did the test myself :P hope this helps to anybody out there!!!

thank you guys much

thanks Amanda I got a 100%