6.3 The development of understanding of genetics and evolution

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Question 10
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Galapagos Mockingbirds

Table 1 shows part of the classification of the Española mockingbird.

Table 1

Classification groupName
KingdomAnimalia
PhylumChordata
(i)Aves
(ii)Passeriformes
(iii)Mimidae
GenusMimus
(iv)macdonaldi
a.

Complete Table 1 by identifying the missing classification groups (i), (ii), (iii), and (iv).

[2]
b.

Give the binomial name of the Española mockingbird. Use information from Table 1.

[1]
c.

Mockingbirds are native to North and South America. Suggest how the ancestors of Galapagos mockingbirds reached the Galapagos Islands from the South American mainland, using the information about prevailing wind currents shown in the figure below.

A two-panel map. Panel 1 shows the western coast of South America with a dashed arrow representing strong, prevailing wind currents blowing westward towards the Galapagos Islands, located approximately 1,000 km offshore. Panel 2 shows four distinct islands within the Galapagos archipelago: Floreana Island inhabited by Mimus trifasciatus, Española Island inhabited by Mimus macdonaldi, San Cristóbal Island inhabited by Mimus melanotis, and a larger island chain inhabited by Mimus parvulus.

[1]
d.

Describe how the mainland ancestors may have evolved into the different mockingbird species found on the Galapagos Islands.

[5]

6.3 The development of understanding of genetics and evolution Questions

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  2. /Biology
  3. /6.3 The development of understanding of genetics and evolution