The Following Questions Refer to the Information Below -What Conclusion Can Be Drawn Validly from These Data?
A)Humans

question 56

Multiple Choice

The following questions refer to the information below.
A researcher compared the nucleotide sequences of a homologous gene from five different species of mammals with the homologous human gene. The sequence homology between each species' version of the gene and the human gene is presented as a percentage of similarity.
$$\begin{array} { l c } \text { Species } & \text { Percentage } \\\hline \text { Chimpanzee } & 99.7 \\\text { Orangutan } & 98.6 \\\text { Baboon } & 97.2 \\\text { Rhesus Monkey } & 96.9 \\\text { Rabbit } & 93.7\end{array}$$

-What conclusion can be drawn validly from these data?

• A)Humans and other primates evolved from rabbits within the past 10 million years.
• B)Most of the genes of other organisms are paralogous to human genes, or with chimpanzee genes.
• C)Among the organisms listed, humans shared a common ancestor most recently with chimpanzees.
• D)Humans evolved from chimpanzees somewhere in Africa within the last 6 million years.

Understand the impact of environmental changes on the evolution of eukaryotes and their endosymbiotic relationships.

Understand the basics of protist diversity, their broad categories, and characteristics.

Recognize the ecological role and significance of microbial eukaryotes and protists in ecosystems.

Identify the structural and functional features unique to various protist groups.

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