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The book 'On the Origin of Species' was published in 1859 - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1
Question 3
The book 'On the Origin of Species' was published in 1859. This book describes the theory of evolution. (a) (i) Which scientist wrote this book explaining his theor... show full transcript
Worked Solution & Example Answer:The book 'On the Origin of Species' was published in 1859 - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1
Step 1
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Step 3
Describe one difference between the humerus of the whale and the humerus of the human.
Answer
One difference between the humerus of the whale and the humerus of the human is that the whale’s humerus is more elongated and adapted to support swimming, while the human’s humerus is structured for a wider range of arm movement.
Step 4
Describe one difference between the phalanges of the horse and the phalanges of the human.
Answer
One difference between the phalanges of the horse and the phalanges of the human is that the horse has fewer phalanges; specifically, the horse has three phalanges while the human has fourteen, reflecting their adaptation to different environments and modes of locomotion.
Step 5
Describe how the thinner beak of species A is a result of evolution.
Answer
The thinner beak of species A evolved due to variation in beak shape among the finches, likely driven by different food sources available in their environment. Thinner beaks are more suited for extracting specific types of food, giving birds with these beaks a competitive advantage. Over generations, these birds reproduced more successfully and passed on the alleles for thinner beaks, illustrating natural selection at work.