100 points must answer two questions and be sure of answer.
A team of scientists is researching the relationship between the two subspecies of A. africanus and concludes that the subspecies were actually different species. Which of the following would increase the reliability of this conclusion?
A. second group of scientists finding significant differences in the DNA of the two different subspecies
B. Providing a description of the methods used in their experiments that led to the conclusion
C. Finding the two different subspecies of the species in different geographic locations
D. Publishing their research in order to make their findings available to the public
Organism A shares 50% of its DNA sequences with organism B, while organisms B and C share 90% of their DNA sequences. What can be concluded from this?
A. Organisms B and C are probably full siblings while organism A is a grandparent of both.
B. Organism A is more ancient than either organism B or organism C.
C. Organisms B and C are more closely related to each other than they are to organism
D. Organism A has suffered more mutations than organisms B or C.
