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Subspecies of the wren (Troglodytes troglodytes) have evolved in different island areas in Scotland - Scottish Highers Biology - Question 7 - 2019
Question 7
Subspecies of the wren (Troglodytes troglodytes) have evolved in different island areas in Scotland. The graphs show averages of body length, wing length and body m... show full transcript
Worked Solution & Example Answer:Subspecies of the wren (Troglodytes troglodytes) have evolved in different island areas in Scotland - Scottish Highers Biology - Question 7 - 2019
Step 1
A) Shetland and Fair Isle wrens have a greater average wing length and body mass than St Kilda wrens
Answer
Based on the data presented, this statement appears to be true as the graphs indicate that both the average wing length and body mass for Shetland and Fair Isle wrens exceed those of St Kilda wrens.
Step 2
B) St Kilda and Fair Isle wrens have a greater average body length and wing length than Shetland wrens
Answer
This statement is not supported by the data, as the graphs show that Shetland wrens have specific measurements that are comparable with the other two subspecies, particularly in terms of average body length and wing length.
Step 3
Step 4
D) Fair Isle wrens are larger in each characteristic than the other two subspecies
Answer
This statement does not hold true according to the graphs, which indicate that while Fair Isle wrens might be larger in certain categories, they are not universally larger than both St Kilda and Shetland wrens across all metrics.