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1. Geospiza magnirostris
2. Geospiza fortis
3. Geospiza parvula
4. Certhidea olivacea

Finches from the Galapagos Archipelago exhibit a variety of beak types that favor different foods. Finches that eat seeds and plant parts have beaks of the shorter, thicker variety, while finches that eat insects and other small organisms have thin, pointed beaks.

A drought has hit the Galapagos Islands. Plant species are dying out; seeds and nuts have all but vanished. Of these four finch species, which is MOST LIKELY to survive under these conditions?

A. Finch 1
B. Finch 2
C. Finch 3
D. Finch 4

Answer :

Answer:

D) Finch 4

Explanation:

These Passerine birds include a number of related species, mostly classified within the genus Geospiza , which are connected to American tanagers in the family Emberizidae rather than to the European finches. (1) Geospiza magnirostris. (2) Geospiza fortis. (3) Geospiza parvula. (4) Certhidea olivacea. G. magnirostris and G. fortis have broad, deep beaks useful for crushing seeds; G. parvula has a small symmetrical beak, suitable to more generalist ground feeding, while C. olivacea, the 'warbler' finch, has an elongated beak useful for capturing insects.

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