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Questions and Answers
What is the main reason for the creation of the three domains (bacteria, eukarya, archaea) classification system?
What is the main reason for the creation of the three domains (bacteria, eukarya, archaea) classification system?
- To better understand the relationships among different species (correct)
- To organize organisms according to their habitat preferences
- To differentiate between animals and plants
- To classify organisms based on their method of reproduction
Which of the following structures are considered homologous?
Which of the following structures are considered homologous?
- Vertebrae in humans, cats, whales, and bats (correct)
- Root systems of a tree and a moss plant
- Eyes of a human and the eyes of a fly
- Wings of a bird and wings of a butterfly
What is the main difference between homologous and analogous structures?
What is the main difference between homologous and analogous structures?
- They have different evolutionary origins (correct)
- They serve different functions in different organisms
- They are not inherited from a common ancestor
- They are always visible on the surface of the organism
How can traits be used in studying organisms?
How can traits be used in studying organisms?
Which of the following is classified as a character?
Which of the following is classified as a character?
In what aspect do homologous and analogous structures differ?
In what aspect do homologous and analogous structures differ?
Why are monophyletic clades preferred over paraphyletic and polyphyletic groupings?
Why are monophyletic clades preferred over paraphyletic and polyphyletic groupings?
What distinguishes a paraphyletic group from a monophyletic clade?
What distinguishes a paraphyletic group from a monophyletic clade?
Which of the following is a shared derived character?
Which of the following is a shared derived character?
What is the main purpose of using maximum parsimony in determining evolutionary relationships?
What is the main purpose of using maximum parsimony in determining evolutionary relationships?
Why is it challenging to estimate evolutionary time accurately using molecular clocks?
Why is it challenging to estimate evolutionary time accurately using molecular clocks?
With reference to protists, why is the group no longer considered to exist?
With reference to protists, why is the group no longer considered to exist?
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