Your classmate shows you the two groups of lizards shown below—each made within

Question

Your classmate shows you the two groups of lizards shown below—each made within the Evolutionary Evidence lab—and asks if you can figure out how she made them. Which of the following is most likely? (Hint: Imagine the circles you'd draw around lizards with shared traits, as you did in Exercises 2-4, and consider what the pattern of circles signifies.)

A.) The lizards in Group A were independently designed; the lizards in Group B were produced by descent with modification from a common ancestor.

B.) The lizards in Group A were produced by descent with modification from a common ancestor; the lizards in Group B were independently designed.

C.) The lizards in both Group A and Group B were produced by descent with modification from a common ancestor.

ral b is more likey to be widespread among other pimate species because it is older Submit Q6. Your classmate shows you the two groups of lizards shown below-each made within the Evolutionary Evidence lab-and asks if you can figure out how she made them. Which of the following is most likely? (Hint: Imagine the circles you'd draw around lizards with shared traits, as you did in Exercises 2-4, and consider what the pattern of circles signifies.) Group A Group B The lizards in Group A were independently designed, the lizards in Group B were produced by descent with modification from a common ancestor The lizards in Group A were produced by descent with modification from a common ancestor the lizards in Group B were independently designed The lizards in both Group A and Group B were produced by descent with modification from a common ancestor it's impossible to make any inferences on how these lizards were made from the information given. Q7. Each of the following graphs shows a hypothetical relationship between the predicted order of trait appearance based on trait nesting (y-axis) and the actual order of appearance in the fossil record (x-axis), for a number of traits among a group of species. Which graph would provide the best evidence that these species arose by descent with modification from a common ancestor?

Explanation / Answer

Species have evolved from a common ancestor, rather than created separately.Evidences supporting the evolution model come from multiple, distinct areas of biology and geology. These pieces of evidence can be grouped into four categories:

A) Direct observation of evolutionary change

B) Homology and development

C) Vestigial traits

D) Fossil record and biogeography

There is a concept called reproductive isolation mechanism that prevents gene exchange among the population..There are many barriers to reproduction that evolve during the course of speciation which limit gene flow between sister species.Each species may have its own courtship displays or breeding season, so that members of the two species do not have the opportunity to interred or two species may be unable to interbreed successfully because of the failure of the egg to become fertilized or to develop.

Option :B

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