Question

note: this answer to question 74 should be recorded on your separate answer sheet. base your answer to question 74 on the diagram below and on your knowledge of biology. variations in beaks of galapagos islands finches diagram of finch beak variations source: galapagos: a natural history guide 74 insects can get diseases just like other organisms. a deadly bacteria infected the insects on one galapagos island. among the birds living there, the finches most likely to experience a drastic decrease in population size would be the (1) warbler finches (2) cactus finches (3) large ground finches (4) medium ground finches

Explanation:

To solve this, we analyze the finches' diets from the diagram. Warbler finches (and others with probing bills) mainly eat animal food (insects, as per "Mainly animal food" section). If a bacteria kills insects, warbler finches lose their primary food source, so their population would drop. Cactus, large ground, and medium ground finches eat plant - based or crushing - type food (not reliant on insects), so they are less affected.

Answer:

(1) warbler finches