Evolution Test ...

Which of the following statement provides the weakest supporting evidence for the idea that all organisms on earth share a common ancestral origin of life?

In the year 2230, ten married, heterosexual pairs of space colonists settle an uninhabited planet. The population randomly mates for several generations. All of the original colonists could roll their tongues, and four were heterozygous for the trait.
Why is it unlikely for Hardy-Weinberg equilibrium to maintain initial allele frequencies for tongue rolling that existed in the original colonists' population?

The finches that populate the Galapagos islands are genetically much more closely related to a species of ground finch found on the mainland in South America than they are to a species of finch found on the mainland in North America. This observation suggests that

The ancestor of all living things would be expected to have all of the following except a/an

Which of the following experiments could provide evidence that all living things share a common genetic code?

Evolutionary biologists maintain that glycolysis is a metabolic pathway that evolved on earth prior to the divergence of life on planet Earth into different domains.
Which of the following statements best supports this hypothesis?

Which of the following diagrams depicts adaptive radiation?

Which of the following pieces of evidence most strongly supports the idea that all life on Earth evolved from a single common ancestor?

The Rh factor is a protein found on the surface of blood cells that is used in blood typing. The Rh+ allele codes for the surface protein and is dominant to the Rh- allele, which does not code for the protein.
If there were a change in the environment that greatly reduced the fitness of Rh- individuals, what would you expect to happen to the frequencies of the Rh+ and Rh- alleles?

Which of the following statements is true?