Question

question 9
according to dr. tim white, humans are more related to ____ than any other mammal.
a orangutans
b gorillas
c chimpanzees
d gibbons

question 10
currently, the most reliable, and therefore widely used, method of determining evolutionary relationships between organisms is __.
a physiological studies
b chemical sequencing
c structural comparisons
d behavioral studies

Explanation:

• Question 9: Humans and chimpanzees share a high degree of genetic similarity. Dr. Tim White's work in paleoanthropology and evolutionary biology supports the close relationship between humans and chimpanzees.
• Question 10: Chemical sequencing, especially DNA sequencing, provides detailed information about the genetic makeup of organisms. Since DNA is the blueprint of life, comparing DNA sequences (a form of chemical sequencing) gives a very accurate picture of evolutionary relationships. Physiological studies, structural comparisons, and behavioral studies can be influenced by convergent evolution (different species evolving similar traits due to similar environments) and are less reliable than genetic - based methods.

Answer:

• Question 9: C. Chimpanzees
• Question 10: B. Chemical sequencing