The phylogenetic tree below represents one model of the order and approximate time of appearance of the major groups of living organisms, and includes four groups represented by the letters R, S, T and U - VCE - SSCE Biology - Question 32 - 2017 - Paper 1
Question 32
The phylogenetic tree below represents one model of the order and approximate time of appearance of the major groups of living organisms, and includes four groups re... show full transcript
Worked Solution & Example Answer:The phylogenetic tree below represents one model of the order and approximate time of appearance of the major groups of living organisms, and includes four groups represented by the letters R, S, T and U - VCE - SSCE Biology - Question 32 - 2017 - Paper 1
Step 1
Identify the major groups represented in the phylogenetic tree.
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Answer
The groups represented by R, S, T, and U in the phylogenetic tree correspond to different categories of living organisms: bacteria, protists, plants, and animals.
Step 2
Analyze the order of appearance based on the phylogenetic tree.
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Answer
From the tree, it can be observed that bacteria (R) appeared first, followed by protists (S), then plants (T), and lastly animals (U). This provides a chronological order of the origins of these groups.
Step 3
Match the identified groups to the choices provided.
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Answer
The correct order according to the tree is R - bacteria, S - protists, T - plants, U - animals, which corresponds to option B in the provided choices.
